Step 6: Prolongs Shelf Life
Leftovers? Butter can help. If you're worried about how long your hard cheeses will last, apply a light coat of butter to keep them fresh and free of mold. Each time you use the cheese, coat the cut edge with butter before you reewrap it and put it back in the fridge. This trick also works well for onions. Rub butter on the cut surface and wrap the leftover onion in aluminum foil before refrigerating it.