Clay is tested to ensure it is totally clear of toxins like lead and cadmium. It can be also used to cook any recipe you prepare in a regular metal pot like rice, soups, curries, sauces. Clay adds a unique flavor to food. For those in love with that finery of the old world, these terracotta curd pot/handi is the right choice for having your dessert in a quintessentially ethnic manner. The Earthen Shop Dahi Handi/ Clay Handi / Matti Handi / Curd Pot is handmade by the special mixture of clay which results in natural cooking solutions for you. These wares are made from good quality earthenware and terracotta.Always avoid Metallic scrubber rather use a Soft sponge. Simply use hot water with lime. Avoid cleaning earthenware with a soap or detergent or in a dishwasher. Allow the vessel to dry completely before storage. Fill half the vessel with water, boil for 3 min & then dispose of the water to remove oil & stains, this will also strengthen & hygiene the utensil.