Not all cheeses age the same way in the fridge. Sharp cheddar and gruyère hold up beautifully, while softer cheeses like cream cheese or brie can get grainy when reheated. Stick to the classics, or mix in a little processed cheese (yes, the orange stuff—it’s a secret weapon for stability).
And if you’re using leftover mac and cheese? Add a splash of milk when you reheat it. It brings back the creaminess, like re-hydrating a tired sponge. It’s a small move that makes a big difference.
