The Absolute Best Way To Store Homemade Fudge And Keep It Fresh - Tasting Table
Briefly

Fudge is hygroscopic, meaning it absorbs moisture from the air. To prevent moisture damage, store it in an airtight container.
For proper long-term storage, cut your fudge into squares, wrap them in parchment or cling film, and then place them in a freezer bag.
Read at Tasting Table
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