To earn more profits, cheaper substances of low quality called adulterants, are mixed with the foodstuffs. The mixing adulterants to foodstuffs is called adulteration of food. Adulterants may be poisonous or harmful and such food is impure and unfit for consumption.
Adding certain chemicals for faster ripening of fruits.
Mixing of decomposed fruits and vegetables with the good ones.
Adding certain natural and chemical dyes to attract consumers.
Mixing of clay, pebbles, stones, sand, and marble chips, to the grains, pulses and other crops.
Cheaper and inferior substances are added wholly or partially with the good ones to increase the weight or nature of the product.