Pickling is to let a lot of salt penetrate into food tissues to achieve the purpose of preserving food. These pickled foods are called pickled products.

Common pickled foods are pickled mushrooms, bacon, sausages, pickled vegetables, salted fish, strawberries, coriander hearts, ginger and so on. Dehydrated fruits and vegetables include dried mushrooms and shredded onions.

Pickled products include pickles, bacon and salted eggs. Pickles can be divided into: pickles (dry, semi-dry and wet pickled products) and pickles (pickled products with sweet sauce or salty sauce).