Its only a couple weeks old. Whey is supposed to keep 3-6 months in the freezer.
Are you channeling your best self with this comment? (If you're not sure, check out our Code of Conduct.)
My guess is that the white powder is butterfat from the whey that rose to the top when it was chilled.
Plus, how to grill individual pizzas for a crowd.
Cheesy Corn & Ranch Pizza
10 Big Little Recipes
Spread the Word
*Way* Better Butter Cake
Here Come the Hits