Ingredients to Enhance Shelf Life of Cream Ganaches

How long cream ganache remains fresh without deterioration in flavor or the development of bacteria and mold depends on the composition of the ganache itself, proper preparation and finishing techniques, and proper packaging and storage. As a general rule of thumb, cream ganache-filled pralines can be kept at room temperature (68°F/20.0°C) for approximately two weeks.

The shelf life of cream ganache is largely determined by the water activity in the mixture. Water activity measurements (Aw) indicate how much water in a mixture is available as a medium for the growth of bacteria and microorganisms. Water activity is based upon a scale of 0 to 100, and lower water activity measures indicate a longer product shelf life.