I have a recipe for pumpkin bars that uses cream cheese. Do the bars need to be refrigerated?



ChefOno October 16, 2013

Oh, and in case you're wondering, sugar "binds" water so as to make it unavailable to microbes. Compare a glass of water to a wet sponge. It's something like that.

ChefOno October 16, 2013

A sufficiently high sugar content will indeed prevent bacterial growth but the equation must consider the entire recipe. In other words, a sugar to everything else ratio. Since the other ingredients are unknown, the answer defaults to "yes".

Technically, to determine if a food is or is not potentially hazardous (does or does not require refrigeration), both the pH (acidity) and aW (water activity level) must be measured, a process which requires laboratory equipment. When in doubt, keep it cold.

what's F. October 15, 2013
I thought it had something to do with the sugar and cream cheese ratio. High amounts of sugar kill bacteria?
ChefOno October 14, 2013


ATL October 14, 2013
I think it's a good idea.
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