It could. But that's a big what-if. Bacteria need certain temperature to grow. And while hot food in a fridge will become that temp. it will only be there for several minutes tops. Also bacteria hate cold and die when they become to cold. All being said, you can do it safely.
Bacteria can form on food left out of the refrigerator after an hour.
Not unless the circumstances are incredibly bad...such as filth everywhere and unsanitary Conditions
The low temperature in a refrigerator prevents bacteria and other food spoiling microbes from reproducing as quickly. Thus, the food takes much longer to go bad.
no. it is a vinegar so it preserves itself
They are not a food source on which the bacteria would normally grow. However, they can become contaminated (smeared with) with the bacteria during bad kitchen hygiene practices.
If there is any food in the refrigerator, this would be a very bad idea - the food will have gone bad, since the temperature in the refrigerator would reach room temperature in a couple of days.If there is no food in the refrigerator, I suppose it would save money to turn it off.
bad bacteria
The bacteria that makes food go 'bad' needs warm places to reproduce. Keeping food in the fridge slows down the bacteria. In many cases chilled foods start to develop bacteria that cause foods contaminate at or above 8 degrees. Domestic and industrial refrigeration runs at 2 to 6 degrees
Bad breath is caused by odor-producing bacteria that grow in the mouth. When people don't brush and floss regularly, bacteria accumulate on the bits of food left in the mouth and between the teeth. The sulfur compounds released by these bacteria make the breath smell.
salmonella
The danger of canned food is under-processing and damaged cans. Under-processing means that not all the bacteria were killed off. The bacteria that are left can grow and spoil the food or produce deadly toxins. Unfortunately, food that contains the botulinum toxin is not necessarily obviously spoiled. Improper sealing, poor storage conditions and bad handling can all affect the integrity of the can itself. If the seals are compromised, bacteria can enter the can and grow.
Good bacteria help in digestion of food and fight microbes invading the body. Bad bacteria can make people sick or spoil food.