Which method would be both effective n safe to reduce pathogenic contaminants in food

First of all, washing the raw food significantly decreases the chances of contamination. Afterward, heating of the food, i.e., cooking and pasteurization is an effective and safe process for killing most of the pathogenic microorganisms that are present in the food. 

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You can always get a sexually transmitted disease. always ask for consent before doing anything..because you never know if your bf or gf has an std!