Moreover, they were crisp enough that they stayed crisp for a full 10 minutes after frying WHY FREEZE FRENCH FRIES? T he best way to preserve fries is to freeze them after the first frying stage You can then fry them the second time straight from the freezer But they lose quality? To test this, I tried freezing half a batch of fries and letting them sit in the freezer overnight before frying them up and tasting them against their unfrozen counterparts The results were surprising: the frozen fries were actually better, with a distinctly fluffier interior Why? Freezing potatoes causes their moisture to convert to ice, forming sharp, jagged crystals These crystals damage the cell structure of the potatoes, making it easier for water to be released and convert to steam when they are heated, and this ... freeze them after the first frying stage You can then fry them the second time straight from the freezer But they lose quality? To test this, I tried freezing half a batch of fries and letting them... letting them sit in the freezer overnight before frying them up and tasting them against their unfrozen counterparts The results were surprising: the frozen fries were actually better, with a distinctly fluffier interior... better, with a distinctly fluffier interior Why? Freezing potatoes causes their moisture to convert to ice, forming sharp, jagged crystals These crystals damage the cell structure of the potatoes, making it easier for water