We should not add wastes containing salts, pickles, oil, vinegar, meat and milk products in vermicomposting pit to feed the redworms. Why?

The addition of substances such as salts, oil, pickles, vinegar, meat, and milk products to vermicompost pit causes the growth of disease-causing small organisms.

The above-mentioned substances may cause harm to redworms and hinder in preparation of vermicompost.