Flour Mill/Grind Stones - Real Stone vs Ceramic Corundum / Carborundum (i.e. Sandpaper)? is Abrasive in our food SAFE? Forums: Baking EquipmentShare Read more about Flour Mill/Grind Stones - Real Stone vs Ceramic Corundum / Carborundum (i.e. Sandpaper)? is Abrasive in our food SAFE?35 commentsLog in or register to post comments