Prokaryotes are chiefly defined as cells without a nucleus to contain the genetic information. Bacteria do not have a nucleus but, like prokaryotes, a nucleoid region in the center where the DNA can be found. Bacteria also do not have membrane-bound organelles, but they do have ribosomes to synthesize proteins. Bacteria vary a lot in the different structures they can have, but these basic factors make bacteria prokaryotes.
Without infection or decay on your food you are decreasing the risk of getting viruses like salmonella,food poisoning,Norovirus, etc. It could also help the less fortunate or homeless they would not have to worry about replacing their food due to decay or infection