This invention aims to decrease the microbial load in liquid food and, at the same time, to reduce the enzyme content in said liquid, in addition to being conducted under temperatures ranging from 6° C. to 50° C. The process works in the following way: The process starts with gasifying the liquid food with pure nitrogen or a nitrogen-carbon dioxide mixture, compressing the gasified liquid to pressure between 250 bar to 500 bar, holding the pressure for at least 300 seconds, then giving an instantaneous decompression. Nitrogen with a carbon content between 1% and 10% may be used to lower the liquids' enzyme content.