Clay Oven USA Clay ovens and tandoors are a very popular style of cooking methods among food lovers who want a balance between taste and health. A clay oven is a dome-shaped hollow structure made of clay, clay & sand or clay & straw. Clay ovens are used for the purpose of roasting and baking foods. This style of cooking adds a sweet and smoky aroma to the food; this is a way to live healthy food life with less oily and fatty food. Health and taste go parallel with clay ovens, here’re some of the benefits of clay oven cooking. Clay ovens circulate steams and moisture throughout cooking and hence you can cook your food with less oil and fat. A slow cooking process retains all the nutrients of the food. Clay ovens are made of clay and sand, the food cooked in such a way adds up more nutrition values. As we all know that clay is alkaline in nature and contains all the possible minerals and vitamins, it acts as a natural detox and neutralizes the PH balance of the food.