There are several synonyms for the phrase "make safe for human consumption." The most common one is "sanitize," which means to remove or destroy harmful microbes or other contaminants. Another synonym is "pasteurize," which involves heating food or drink to a high temperature to kill bacteria and other pathogens. "Sterilize" is a similar term that refers to the complete elimination of all microorganisms. "Decontaminate" also works as a synonym, as it means to remove or neutralize harmful substances from a surface or substance. Lastly, the word "purify" can also apply, as it involves removing impurities or pollutants from something.