Vasantbhai Rathwa of Vadodara district, Gujarat makes large earther pots suitable for storing grains and seeds for longer periods. He first soaks the clay with cow urine and decoction of neem (Azadirachta indica) leaves boiled in water. After 3-4 hour the soaked clay is kneaded by feet, adding neem leaves. He then moulds different sections with hand and gives it the shape of the pot. Finally, the pot is given the coat of cow dung. Pots made in this manner are suitable to store grains and seeds for longer periods. Other farmers are also utilizing these earthen pots for grain storage. This practice rechecked by Narendrasinh Parmar in July 2004 and found to be in use.
Ingredients: Cow dung, cow-urine, clay, leaves of neem (Azadirachta indica), leaves of kodo millet (Paspalum scrobiculatum), grass
"Grain
Storage: Methods and Measurements."
https://www.researchgate.net/publication/260415101_Grain_storage_methods_and_measurements