References on food safety?
This is a very broad question. My recommendation is to look up your specific product at 
the US FDA Food Safety page.

Some of the topics treated are:

Product-Specific Information

Acidified and Low-Acid Canned Foods

Bottled Water &amp; Carbonated Soft Drinks

Cheese Safety

Egg Safety

Fruits, Vegetables &amp; Juices

Infant Formula

Medical Foods

Milk Safety

Seafood

Food Allergens

Consumer Information

Food Allergens Labeling

Foodborne Illness

Consumer Information

Foodborne Illness, Foodborne Pathogens &amp; Natural Toxins

Interagency Coordination

Food Contaminants &amp; Adulteration

Chemical Contaminants

Metals

Natural Toxins

Pesticides