Expired food belongs to wet garbage, because expired food belongs to perishable biomass household waste. Wet garbage refers to the easily perishable biomass waste generated from daily life waste. Wet garbage mainly includes ingredient wastes, leftovers, expired food, vegetables and fruits, melon peels and kernels, flowers and greenery, and Chinese medicine residues.

Requirements for wet garbage disposal:

1. Pure fluid food waste, such as milk, should be poured directly into the downspout;

2. Wet garbage with packages should be classified after removing the packages, and the packages should be put into the corresponding recyclables or dry garbage containers.