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It can legally be up to 55 percent moisture, with sufficient protein and lactose -- milk's natural sugar -- to feed microorganisms. As with fish, chicken and other perishable foods, cream cheese and other soft cheeses should not be left out at room temperature for longer than two hours.heese in various forms has been around for thousands of years, and refrigeration for just over a century, so it's clear that not all cheeses must be refrigerated all the time. As a rule, the firmer and drier a cheese is, the longer it takes to spoil at room temperature.
In those days, there was no refrigeration, so this is how, perhaps, some cheeses began to aquire mold like bleu cheese, for example. The fact is that cheese can be stored at room temperature (78 F) for an indefinite period of time if it is wrapped in something sanitary.The high salt content of most cheeses limits or inhibits the growth of other microorganisms.t depends on what cheese you're talking about. Cheeses with more water content are going to go bad faster than dryer cheeses. For example, Parmesan cheese can actually be stored at room temperature, but cottage cheese will go bad in a matter of hours. Marcky Marc Â· 6 years ago.