Blue cheese stays fresh for three to four weeks in the refrigerator when stored properly. The key is balancing two competing needs: the cheese must breathe (it’s a living culture), but it also needs protection from drying out and spreading its strong aroma to everything else in your fridge.
The Best Way to Wrap Blue Cheese
Plastic wrap is the worst choice for blue cheese. It traps too much moisture against the surface and suffocates the mold cultures that give the cheese its character. Instead, wrap your blue cheese first in parchment paper, then loosely in aluminum foil. This two-layer method mimics the construction of specialty cheese paper: the parchment lets the cheese breathe while the foil holds in just enough moisture to prevent drying. A loose zip-lock bag also works, but avoid vacuum-sealing, which crushes the delicate interior and kills airflow.
Rewrap the cheese in fresh parchment each time you use it. The old wrapper will have absorbed moisture and oils that can accelerate spoilage.
Where to Store It in Your Fridge
Aim for a temperature between 35°F and 45°F (1–7°C) with relatively high humidity. The vegetable crisper drawer hits both marks better than the main shelves, which tend to be drier and more prone to temperature swings when the door opens. If your fridge has adjustable humidity settings on the drawer, set it high (80–90% is ideal).
Blue cheese deserves its own space. The Penicillium mold that creates those signature veins is aggressive, and its spores can migrate to milder cheeses stored nearby, changing their flavor. The American Cheese Society recommends double-wrapping pungent cheeses like blues and washed-rind varieties, then placing them in an airtight container to prevent aroma leakage. A small glass or plastic container with a lid works perfectly and has the added benefit of keeping the smell from permeating your butter, berries, or anything else sharing the fridge.
How Long Different Types Last
A wedge of blue cheese, once cut or opened, stays good for roughly three to four weeks with proper wrapping and refrigeration. Crumbled blue cheese has a shorter window of two to three weeks because the extra surface area exposed to air causes it to dry out faster. Store crumbles in a small airtight container lined with a slightly damp paper towel to maintain moisture.
Whole, uncut wheels last considerably longer because the rind protects the interior. If you buy a large piece, cut off only what you need and rewrap the rest immediately.
Can You Freeze Blue Cheese?
You can freeze blue cheese for up to six months, and it remains safe to eat beyond that point, though the texture and flavor will deteriorate. Freezing makes blue cheese noticeably more crumbly once thawed, so it works best when you plan to cook with it, crumble it into sauces, melt it into dressings, or stir it into soups. For a cheese board, frozen-and-thawed blue cheese will disappoint.
To freeze, wrap portions tightly in parchment and foil, then seal in a freezer bag with as much air pressed out as possible. Thaw overnight in the refrigerator rather than at room temperature.
Bringing It to Serving Temperature
Cold blue cheese tastes muted. The fats in the cheese solidify in the fridge, which dulls both the flavor and the creamy texture. Pull it out 20 to 30 minutes before serving and let it come closer to room temperature. The paste will soften, the aroma will open up, and you’ll get the full pungent, tangy profile the cheese is supposed to deliver.
How to Tell When It’s Gone Bad
Blue cheese is already moldy on purpose, which makes spotting spoilage tricky. The blue-green veins running through the interior are normal. What you’re looking for is new, unwanted growth on the surface: fuzzy patches of white, pink, or gray mold that weren’t there when you bought it. These secondary molds are different organisms from the intentional cultures and signal the cheese has turned.
Smell is your other reliable indicator. Blue cheese is always pungent, but spoiled blue cheese develops a sharp ammonia odor that’s distinct from its usual funk. If the smell makes you recoil rather than just wrinkling your nose, it’s time to toss it. A slimy or unusually sticky surface is another sign that bacteria have taken over beyond what’s safe.