If you want to make mugs and plates out of clay, you need to use food safe clay. Here is what you need to know about choosing food safe clay
Food Grade Sodium Bentonite Clay (1 Pound)
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PURE CLAY Food Grade Organic Calcium Bentonite Clay Powder, Internal and External Deep Cleansing, Daily Detox Drink, Face Mask, Body Mud, & Toothpaste - 16 oz : Beauty & Personal Care
Belle Chemical Food Grade Sodium Bentonite Clay Powder - 1 Pound (BCP - 16) for sale online