{"title":"Kansas Clay (formerly Flint Hills)","description":"","products":[{"product_id":"earthenware-red","title":"Kansas Clay - Cone 06-04 Earthenware Red","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA low fire red clay that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2.\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eDuring the summer of 2020, Kansas Clay completed a comprehensive test of their clay bodies.  For each clay body, they tested 6 flat bars, which were rolled out on a slabroller.  They ALSO tested vertical shrinkage of a thrown cylinder (6 sections, each with their own test).\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003ctable width=\"100%\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003c\/td\u003e \u003ctd\u003eFlat\u003c\/td\u003e \u003ctd\u003eVertical\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWet to Dry Shrinkage\u003c\/td\u003e \u003ctd\u003e6.06%\u003c\/td\u003e \u003ctd\u003e6.33%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOverall Shrinkage\u003c\/td\u003e \u003ctd\u003e8.84%\u003c\/td\u003e \u003ctd\u003e9.17%\u003cbr\u003e\n\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAbsorption\u003c\/td\u003e \u003ctd\u003e5.96%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLOI\u003c\/td\u003e \u003ctd\u003e8.05%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eTesting Methodology\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBeginning weights in grams were recorded\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded when bone dry\u003c\/li\u003e \u003cli\u003eThe samples were fired to Cone 04\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded again\u003c\/li\u003e \u003cli\u003eThe flat tiles were then soaked in hot water for 1 1\/2 hours, then weighed again\u003c\/li\u003e \u003cli\u003eMath magic was then done to calculate the average shrinkage wet-dry and average shrinkage overall for both flat and thrown tests, and the average water absorption was calculated based on the flat bars.\u003c\/li\u003e \u003cli\u003eWe also figured the \"LOI\" (Loss on Ignition) by computing the fired weight against the bone dry weight.  This tells us what percent of organics burn off in the firing.    \u003c\/li\u003e \u003c\/ul\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eFlint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e \u003cp\u003e\u003cstrong\u003e*Important information about flat rate clay shipping\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eachievingoptimumhealth is doing our best to make sure you can get clay during this period of social distancing so we are now offering flat rate shipping via the US Postal Service on moist clays! You can choose a 25lb box shipped in a medium flat rate box or a 50lb box shipped in a large flat rate box. The shopping cart will correctly calculate the shipping for theses clays. Just make sure you select \"Free Shipping\" as your shipping method when you checkout. If you have any other items in your cart you will only be charged shipping for those items and not the clay.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant note. US Postal service flat rate price is only valid for orders shipped domestically.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIf you are buying clay to pick up, ship via UPS Ground, LTL Freight or delivery by KPS do not select \"US Postal Service Clay Shipping\" as it will add a shipping charge and increase your clay price. Bulk discounts on clay will only appear when you select the \"50 Pound Box\" size.\u003c\/strong\u003e\u003c\/p\u003e \u003c\/div\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095609749567,"sku":"Earthenware Red-50","price":50.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095609782335,"sku":"Earthenware Red-25","price":25.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095609815103,"sku":"Earthenware Red-50-Ship","price":68.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095609847871,"sku":"Earthenware Red-25-Ship","price":39.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337061150783,"sku":"Earthenware Red-50","price":46.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337061183551,"sku":"Earthenware Red-50","price":41.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337061216319,"sku":"Earthenware Red-50","price":37.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337061249087,"sku":"Earthenware Red-50","price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Red_Earthenware_Fired_to_Cone04_f5c7da14-cbdc-443d-a706-0872f6671063.png?v=1683756462"},{"product_id":"terra-cotta-with-grog","title":"Kansas Clay - Cone 06-04 Terra Cotta with Grog","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA low fire red clay with about 18% grog (30 mesh flint grog) that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2.\u003c\/span\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095610011711,"sku":"Terra Cotta with Grog-50","price":50.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095610044479,"sku":"Terra Cotta with Grog-25","price":25.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095610077247,"sku":"Terra Cotta with Grog-50-Ship","price":68.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095610110015,"sku":"Terra Cotta with Grog-25-Ship","price":39.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337061543999,"sku":"Terra Cotta with Grog-50","price":46.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337061576767,"sku":"Terra Cotta with Grog-50","price":41.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337061609535,"sku":"Terra Cotta with Grog-50","price":37.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337061642303,"sku":"Terra Cotta with Grog-50","price":35.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Terra_Cotta_Fired_to_Cone04_af7bd934-0c0e-42f8-88c9-cd3e057fefbd.png?v=1683756465"},{"product_id":"kansas-wheat","title":"Kansas Clay - Cone 5-6 Kansas Wheat","description":"\u003cmeta charset=\"utf-8\"\u003e \u003cdiv class=\"Description_Description\"\u003e\u003cspan\u003eKansas Wheat is a little warmer color than the Flint Hills 5\/6 Buff. Great for throwing as well as handbuilding (there's no grog in this body, but it's a toothy mid-fired stoneware clay). Customers have tested it with a wide variety of glazes from different manufacturers with no unusual glaze fit issues.\u003c\/span\u003e\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e \u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\u003cspan\u003ewet to dry shrinkage = 5.9% \u003c\/span\u003e\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\u003cspan\u003ewet to bisque = 9.15%\u003c\/span\u003e\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\u003cspan\u003ewet to cone 5 = 12.5%\u003c\/span\u003e\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\u003cspan\u003eabsorption at Cone 5 = 3.37%\u003c\/span\u003e\u003c\/div\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095610273855,"sku":"Kansas Wheat-50","price":61.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095610306623,"sku":"Kansas Wheat-25","price":30.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095610339391,"sku":"Kansas Wheat-50-Ship","price":79.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095610372159,"sku":"Kansas Wheat-25-Ship","price":44.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337063936063,"sku":"Kansas Wheat-50","price":56.12,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337063968831,"sku":"Kansas Wheat-50","price":50.02,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337064001599,"sku":"Kansas Wheat-50","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337064034367,"sku":"Kansas Wheat-50","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Kansas_Clay_Kansas_Wheat_7ce11e08-47a5-4f46-ad79-e485f4f56816.webp?v=1683756471"},{"product_id":"peppered-wheat","title":"Kansas Clay - Cone 5-6 Peppered Wheat","description":"\u003cp\u003eMid-fire speckled buff colored clay - the same formula as the new WHEAT clay with added specks that make it look like someone sprinkled pepper on it.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095610404927,"sku":"Peppered Wheat-50","price":63.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095610437695,"sku":"Peppered Wheat-25","price":31.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095610470463,"sku":"Peppered Wheat-50-Ship","price":81.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095610503231,"sku":"Peppered Wheat-25-Ship","price":45.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337064067135,"sku":"Peppered Wheat-50","price":57.96,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337064099903,"sku":"Peppered Wheat-50","price":51.66,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337064132671,"sku":"Peppered Wheat-50","price":47.25,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337064165439,"sku":"Peppered Wheat-50","price":44.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Peppered_Wheat_Fired_to_Cone5_432c109c-cf30-47bb-86b6-9f1376c786c9.png?v=1683756473"},{"product_id":"red-brick-road","title":"Kansas Clay - Cone 5-6 Red Brick Road","description":"\u003cmeta charset=\"utf-8\"\u003e \u003cdiv class=\"Description_Description\"\u003eA redder version of the Flint Hills 5\/6 Red (also known as Kansas Red or 5\/6 Redder until we made the final decision on the name). This will replace the Flint Hills 5\/6 Red clay body.\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\u003c\/div\u003e \u003cdiv class=\"Description_Description\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cp\u003eAverage Shrinkage 12-13.5%\u003c\/p\u003e \u003cp\u003eAbsorption 0-1%\u003c\/p\u003e \u003c\/div\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095610535999,"sku":"Red Brick Road-50","price":52.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095610568767,"sku":"Red Brick Road-25","price":26.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095610601535,"sku":"Red Brick Road-50-Ship","price":70.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095610634303,"sku":"Red Brick Road-25-Ship","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337064198207,"sku":"Red Brick Road-50","price":47.84,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337064230975,"sku":"Red Brick Road-50","price":42.64,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337064263743,"sku":"Red Brick Road-50","price":39.0,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337064296511,"sku":"Red Brick Road-50","price":36.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Kansas_Red_Fired_to_Cone5_76464efc-7bd6-42b0-800a-e18db375b18b.png?v=1683756474"},{"product_id":"red-cobblestone","title":"Kansas Clay - 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This body is especially nice when woodfired.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095612141631,"sku":"Domestic Porcelain-50","price":63.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095612174399,"sku":"Domestic Porcelain-25","price":31.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095612207167,"sku":"Domestic Porcelain-50-Ship","price":81.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095612239935,"sku":"Domestic Porcelain-25-Ship","price":45.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337061806143,"sku":"Domestic Porcelain-50","price":57.96,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337061838911,"sku":"Domestic Porcelain-50","price":51.66,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337061871679,"sku":"Domestic Porcelain-50","price":47.25,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337061904447,"sku":"Domestic Porcelain-50","price":44.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Domestic_Porcelain_Fired_to_Cone10_Reduction_0eea5b0e-7998-4b48-8e5f-341403afc891.png?v=1683756498"},{"product_id":"english-porcelain","title":"Kansas Clay - Cone 10 English Porcelain","description":"\u003cp\u003eA high-fire, carefully blended porcelain made from English Grolleg Kaolin. 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Great for all methods of firing and suitable for celadon and copper red glazes in reduction.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095612305471,"sku":"English Porcelain-50","price":91.5,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095612338239,"sku":"English Porcelain-25","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095612371007,"sku":"English Porcelain-50-Ship","price":110.45,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095612403775,"sku":"English Porcelain-25-Ship","price":59.75,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337062068287,"sku":"English Porcelain-50","price":84.18,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337062101055,"sku":"English Porcelain-50","price":75.03,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337062133823,"sku":"English Porcelain-50","price":68.63,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337062166591,"sku":"English Porcelain-50","price":64.05,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/English_Porcelain_Fired_to_Cone10_Oxidation_aa96d730-9a40-47f1-aec8-b62edf2e51f3.png?v=1683756499"},{"product_id":"buff-white-stoneware-dry","title":"Kansas Clay - Cone 5-6 Buff White Stoneware - 50 Pounds Dry","description":"\u003cmeta charset=\"utf-8\"\u003e \u003cp\u003eA medium range light stoneware body which fires off-white to buff in oxidation and slightly darker in reduction.\u003c\/p\u003e \u003cp\u003eAverage Shrinkage 12.5-14%\u003c\/p\u003e \u003cp\u003eAbsorption 3.5-4%\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612436543,"sku":"Buff White Stoneware DRY","price":61.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337063542847,"sku":"Buff White Stoneware DRY","price":56.12,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337063575615,"sku":"Buff White Stoneware DRY","price":50.02,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337063608383,"sku":"Buff White Stoneware DRY","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337063641151,"sku":"Buff White Stoneware DRY","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/White_Stoneware_Fired_to_Cone10_Oxidation.png?v=1683756501"},{"product_id":"stoneware-dry","title":"Kansas Clay - Cone 10 Stoneware - 50 Pounds Dry","description":"\u003cp\u003eA high-fire throwing body with iron-based fireclays which produce warm browns in reduction. Contains no grog but has a fair amount of fine tooth due to the high fireclay content.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612469311,"sku":"Stoneware DRY","price":61.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337062625343,"sku":"Stoneware DRY","price":56.12,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337062658111,"sku":"Stoneware DRY","price":50.02,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337062690879,"sku":"Stoneware DRY","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337062723647,"sku":"Stoneware DRY","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Stoneware_Fired_to_Cone10_Oxidation.png?v=1683756503"},{"product_id":"domestic-porcelain-dry","title":"Kansas Clay - Cone 10 Domestic Porcelain - 50 Pounds Dry","description":"\u003cp\u003eA high-fire, inexpensive porcelain made from domestic kaolins. 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This body is especially nice when woodfired.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612502079,"sku":"Domestic Porcelain DRY","price":78.5,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337061937215,"sku":"Domestic Porcelain DRY","price":72.22,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337061969983,"sku":"Domestic Porcelain DRY","price":64.37,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337062002751,"sku":"Domestic Porcelain DRY","price":58.88,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337062035519,"sku":"Domestic Porcelain DRY","price":54.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Domestic_Porcelain_Fired_to_Cone10_Reduction.png?v=1683756504"},{"product_id":"terra-blank-dry","title":"Kansas Clay - Cone 06-04 Terra Blanc Dry","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA non-talc based low-fire white clay that is easier to throw than talc-based bodies, especially for beginners. Fires to a creamy white at Cone 04. Low shrinkage and great glaze fit.\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eDuring the summer of 2020, Kansas Clay completed a comprehensive test of their clay bodies.  For each clay body, they tested 6 flat bars, which were rolled out on a slabroller.  They ALSO tested vertical shrinkage of a thrown cylinder (6 sections, each with their own test).\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003ctable width=\"100%\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003c\/td\u003e \u003ctd\u003eFlat\u003c\/td\u003e \u003ctd\u003eVertical\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWet to Dry Shrinkage\u003c\/td\u003e \u003ctd\u003e4.08%\u003c\/td\u003e \u003ctd\u003e4.33%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOverall Shrinkage\u003c\/td\u003e \u003ctd\u003e5.95%\u003c\/td\u003e \u003ctd\u003e6.18%\u003cbr\u003e\n\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAbsorption\u003c\/td\u003e \u003ctd\u003e11.36%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLOI\u003c\/td\u003e \u003ctd\u003e8.33%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eTesting Methodology\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBeginning weights in grams were recorded\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded when bone dry\u003c\/li\u003e \u003cli\u003eThe samples were fired to Cone 04\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded again\u003c\/li\u003e \u003cli\u003eThe flat tiles were then soaked in hot water for 1 1\/2 hours, then weighed again\u003c\/li\u003e \u003cli\u003eMath magic was then done to calculate the average shrinkage wet-dry and average shrinkage overall for both flat and thrown tests, and the average water absorption was calculated based on the flat bars.\u003c\/li\u003e \u003cli\u003eWe also figured the \"LOI\" (Loss on Ignition) by computing the fired weight against the bone dry weight.  This tells us what percent of organics burn off in the firing.    \u003c\/li\u003e \u003c\/ul\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eFlint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e \u003cp\u003e\u003cstrong\u003e*Important information about flat rate clay shipping\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eachievingoptimumhealth is doing our best to make sure you can get clay during this period of social distancing so we are now offering flat rate shipping via the US Postal Service on moist clays! You can choose a 25lb box shipped in a medium flat rate box or a 50lb box shipped in a large flat rate box. The shopping cart will correctly calculate the shipping for theses clays. Just make sure you select \"Free Shipping\" as your shipping method when you checkout. If you have any other items in your cart you will only be charged shipping for those items and not the clay.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant note. US Postal service flat rate price is only valid for orders shipped domestically.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIf you are buying clay to pick up, ship via UPS Ground, LTL Freight or delivery by KPS do not select \"US Postal Service Clay Shipping\" as it will add a shipping charge and increase your clay price. Bulk discounts on clay will only appear when you select the \"50 Pound Box\" size.\u003c\/strong\u003e\u003c\/p\u003e \u003c\/div\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612534847,"sku":"Terra Blank DRY","price":65.0,"currency_code":"EUR","in_stock":false},{"title":"50 Pound Bag 2+","offer_id":40337061412927,"sku":"Terra Blank DRY","price":59.8,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337061445695,"sku":"Terra Blank DRY","price":53.3,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337061478463,"sku":"Terra Blank DRY","price":48.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337061511231,"sku":"Terra Blank DRY","price":45.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Terra_Blanc_Fired_to_Cone04.png?v=1683756506"},{"product_id":"earthenware-red-dry","title":"Kansas Clay - Cone 06-04 Earthenware Red Dry","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eA low fire red clay that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2.\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eDuring the summer of 2020, Kansas Clay completed a comprehensive test of their clay bodies.  For each clay body, they tested 6 flat bars, which were rolled out on a slabroller.  They ALSO tested vertical shrinkage of a thrown cylinder (6 sections, each with their own test).\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e \u003ctable width=\"100%\"\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003e\u003c\/td\u003e \u003ctd\u003eFlat\u003c\/td\u003e \u003ctd\u003eVertical\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWet to Dry Shrinkage\u003c\/td\u003e \u003ctd\u003e6.06%\u003c\/td\u003e \u003ctd\u003e6.33%\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eOverall Shrinkage\u003c\/td\u003e \u003ctd\u003e8.84%\u003c\/td\u003e \u003ctd\u003e9.17%\u003cbr\u003e\n\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eAbsorption\u003c\/td\u003e \u003ctd\u003e5.96%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLOI\u003c\/td\u003e \u003ctd\u003e8.05%\u003c\/td\u003e \u003ctd\u003e\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003eTesting Methodology\u003c\/p\u003e \u003cul\u003e \u003cli\u003eBeginning weights in grams were recorded\u003cbr\u003e\n\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded when bone dry\u003c\/li\u003e \u003cli\u003eThe samples were fired to Cone 04\u003c\/li\u003e \u003cli\u003eLines and weights were measured \u0026amp; recorded again\u003c\/li\u003e \u003cli\u003eThe flat tiles were then soaked in hot water for 1 1\/2 hours, then weighed again\u003c\/li\u003e \u003cli\u003eMath magic was then done to calculate the average shrinkage wet-dry and average shrinkage overall for both flat and thrown tests, and the average water absorption was calculated based on the flat bars.\u003c\/li\u003e \u003cli\u003eWe also figured the \"LOI\" (Loss on Ignition) by computing the fired weight against the bone dry weight.  This tells us what percent of organics burn off in the firing.    \u003c\/li\u003e \u003c\/ul\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cspan\u003eFlint Hills clays have been evaluated by a nationally certified toxicologist, and have been found to be in compliance with ASTM C-1023 and D-4236, and to not contain any material in sufficient quantity to be toxic or to constitute a chronic health hazard when used responsibly.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e \u003cdiv data-mce-fragment=\"1\" class=\"Description_Description\"\u003e \u003cp\u003e\u003cstrong\u003e*Important information about flat rate clay shipping\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eachievingoptimumhealth is doing our best to make sure you can get clay during this period of social distancing so we are now offering flat rate shipping via the US Postal Service on moist clays! You can choose a 25lb box shipped in a medium flat rate box or a 50lb box shipped in a large flat rate box. The shopping cart will correctly calculate the shipping for theses clays. Just make sure you select \"Free Shipping\" as your shipping method when you checkout. If you have any other items in your cart you will only be charged shipping for those items and not the clay.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eImportant note. US Postal service flat rate price is only valid for orders shipped domestically.\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIf you are buying clay to pick up, ship via UPS Ground, LTL Freight or delivery by KPS do not select \"US Postal Service Clay Shipping\" as it will add a shipping charge and increase your clay price. Bulk discounts on clay will only appear when you select the \"50 Pound Box\" size.\u003c\/strong\u003e\u003c\/p\u003e \u003c\/div\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612567615,"sku":"Earthenware Red DRY","price":65.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337061281855,"sku":"Earthenware Red DRY","price":59.8,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337061314623,"sku":"Earthenware Red DRY","price":53.3,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337061347391,"sku":"Earthenware Red DRY","price":48.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337061380159,"sku":"Earthenware Red DRY","price":45.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Red_Earthenware_Fired_to_Cone04.png?v=1683756507"},{"product_id":"terra-cotta-with-grog-dry","title":"Kansas Clay - Cone 06-04 Terra Cotta with Grog Dry","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eA low fire red clay with about 18% grog (30 mesh flint grog) that fires to a light red-orange color at cone 06 to 05, and a richer, deeper red color when fired hotter, up to about a cone 2.\u003c\/span\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612600383,"sku":"Terra Cotta with Grog DRY","price":65.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337061675071,"sku":"Terra Cotta with Grog DRY","price":59.8,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337061707839,"sku":"Terra Cotta with Grog DRY","price":53.3,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337061740607,"sku":"Terra Cotta with Grog DRY","price":48.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337061773375,"sku":"Terra Cotta with Grog DRY","price":45.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Terra_Cotta_Fired_to_Cone04.png?v=1683756509"},{"product_id":"buff-white-stoneware-with-grog-dry","title":"Kansas Clay - Cone 5-6 Buff White Stoneware with Grog - 50 Pounds Dry","description":"\u003cmeta charset=\"utf-8\"\u003e \u003cp\u003eA medium range light stoneware body which fires off-white to buff in oxidation and slightly darker in reduction.\u003c\/p\u003e \u003cp\u003eAverage Shrinkage 12.5-14%\u003c\/p\u003e \u003cp\u003eAbsorption 3.5-4%\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612633151,"sku":"Buff White Stoneware with Grog DRY","price":61.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337063673919,"sku":"Buff White Stoneware with Grog DRY","price":56.12,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337063706687,"sku":"Buff White Stoneware with Grog DRY","price":50.02,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337063739455,"sku":"Buff White Stoneware with Grog DRY","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337063772223,"sku":"Buff White Stoneware with Grog DRY","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/White_Stoneware_with_Grog_Fired_to_Cone10_Oxidation.png?v=1683756510"},{"product_id":"stoneware-white-with-grog-dry","title":"Kansas Clay - Cone 10 Stoneware White with Grog - 50 Pounds Dry","description":"\u003cp\u003eA non-iron based high-fire stoneware body with about 18% grog (30 mesh flint grog). Fires to a buff color and provides a good background for glazes. Suitable for high-fire throwing, sculpture, and handbuilding as well as raku and primitive firing methods.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612665919,"sku":"Stoneware White with Grog DRY","price":61.0,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337062887487,"sku":"Stoneware White with Grog DRY","price":56.12,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337062920255,"sku":"Stoneware White with Grog DRY","price":50.02,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337062953023,"sku":"Stoneware White with Grog DRY","price":45.75,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337062985791,"sku":"Stoneware White with Grog DRY","price":42.7,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Stoneware_White_with_Grog_Oxidation.webp?v=1683756513"},{"product_id":"winter-wind-dry","title":"Kansas Clay - Cone 5-6 Winter Wind Porcelain Dry","description":"\u003cmeta charset=\"utf-8\"\u003e \u003cp\u003eWinter Wind is a reformulation of the Flint Hills Cone 5\/6 Porcelain.  You should not notice a difference in workability or glaze fit.  The body is almost identical, but the original included a bag of talc.  \u003c\/p\u003e \u003cp\u003eaverage shrinkage wet to dry = 4.49%\u003c\/p\u003e \u003cp\u003eaverage shrinkage at bisque = 6.85%\u003c\/p\u003e \u003cp\u003eaverage shrinkage at cone 5 = 10.26%\u003c\/p\u003e \u003cp\u003eaverage absorption - 6.24%\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50 Pound Bag","offer_id":40095612698687,"sku":"Winter Wind DRY","price":78.5,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 2+","offer_id":40337064591423,"sku":"Winter Wind DRY","price":72.22,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 10+","offer_id":40337064624191,"sku":"Winter Wind DRY","price":64.37,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 20+","offer_id":40337064656959,"sku":"Winter Wind DRY","price":58.88,"currency_code":"EUR","in_stock":true},{"title":"50 Pound Bag 40+","offer_id":40337064689727,"sku":"Winter Wind DRY","price":54.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Kansas_Clay_Winter_Wind.jpg?v=1683756514"},{"product_id":"high-plains-porcelain","title":"Kansas Clay - Cone 10 High Plains Porcelain","description":"\u003cp\u003eFor years, Flint Hills has been making this special blend of Domestic Porcelain for production potter, Steve Coburn.  The addition of both 30 and 120 mesh Molochite gives this clay additional strength without compromising whiteness, while the addition of 100 mesh kyanite reduces shrinkage.\u003c\/p\u003e","brand":"Kansas Clay","offers":[{"title":"50lb Box","offer_id":40095613190207,"sku":"High Plains Porcelain-50","price":65.0,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag","offer_id":40095613222975,"sku":"High Plains Porcelain-25","price":32.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box Shipped Large Flat Rate in the USA","offer_id":40095613255743,"sku":"High Plains Porcelain-50-Ship","price":83.95,"currency_code":"EUR","in_stock":true},{"title":"25lb Bag Shipped Medium Flat Rate in the USA","offer_id":40095613288511,"sku":"High Plains Porcelain-25-Ship","price":46.5,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 2+","offer_id":40337062199359,"sku":"High Plains Porcelain-50","price":59.8,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 10+","offer_id":40337062232127,"sku":"High Plains Porcelain-50","price":53.3,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 20+","offer_id":40337062297663,"sku":"High Plains Porcelain-50","price":48.75,"currency_code":"EUR","in_stock":true},{"title":"50lb Box 40+","offer_id":40337062330431,"sku":"High Plains Porcelain-50","price":45.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0010\/1931\/4239\/products\/Kansas_Clay_High_Plains_Porcelain_Oxidation_6928f239-0fbf-458a-bba9-4298ee5d291e.webp?v=1683756496"}],"url":"https:\/\/achievingoptimumhealth.com\/collections\/flint-hills-clay.oembed","provider":"achievingoptimumhealth","version":"1.0","type":"link"}