Cheddar Cheese
Quick answer: An opened block of cheddar lasts 3-4 weeks in the fridge; an unopened block can last up to 6 months. Freeze a well-wrapped chunk for up to 6 months, just expect a crumblier texture on the other side.
A block of cheddar is one of the more forgiving things in your fridge, until it isn't, and you're staring at a fuzzy green corner wondering if the rest is salvageable. The good news: with the right wrap job, an opened block stays good for nearly a month, and an unopened one can sit in the fridge for up to six months. Here's exactly how long it lasts, how to store it so it actually makes it that long, and what to do when it's getting close to the edge.
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How to store cheddar cheese
Wrap opened cheddar in wax paper, parchment, or cheese paper first, this lets it breathe without drying out, then tuck it into a resealable bag or container. Leave an unopened block in its original packaging until you're ready to use it. To freeze, wrap chunks tightly in plastic wrap followed by foil or a freezer bag, and thaw slowly in the fridge when you need it.
How to spot spoilage
Toss it if you see red, black, or fuzzy green mold, dark spots, or widespread discoloration. A strong sour or ammonia-like smell is another clear signal. Texture-wise, watch for sliminess or mushiness, excessive dryness and cracking are worth noting too, though not always a dealbreaker. Small white mold spots on an otherwise firm, normal-smelling block can be scraped off, but if the mold is colored or has spread, it goes in the bin.
How to revive them
If the block has dried out but still smells fine, wrap it tightly in foil and freeze it, it won't be a cheese board star anymore, but it'll melt into a soup or casserole just fine. If it's slightly stale but mold-free, grate it and use it immediately rather than waiting for a better day that isn't coming.
Use it up before it spoils
- Grate the whole block and freeze in portions for future mac and cheese or quesadillas
- Melt into a quick stovetop cheese sauce and pour it over broccoli, pasta, or baked potatoes
- Cube it into a frittata or egg scramble before it dries out further
- Layer thick slices into a grilled cheese, the classic move, and still the right one
- Stir shredded cheddar into cornbread or savory muffin batter before baking
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Best ways to preserve
- freeze
Nutrition at a glance
Per 28.3 g (1 oz (about a 1-inch cube or a small handful shredded))
| Calories | 116 |
|---|---|
| Protein | 6.9 g |
| Carbohydrates | 0.6 g |
| Fiber | 0 g |
| Sugar | 0.1 g |
| Fat | 9.6 g |
| Saturated fat | 5.5 g |
| Sodium | 182 mg |
Source: USDA FoodData Central. Cheese, cheddar, sharp, sliced (SR Legacy)
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Frequently asked questions
Can you freeze cheddar cheese?
Yes, freeze cheddar in blocks or chunks, wrapped tightly in plastic wrap and foil or sealed in a freezer bag, for up to 6 months. The texture will become crumblier after freezing, so it's best used in cooked dishes like soups, casseroles, or mac and cheese rather than on a cheese board. Shredded or pre-sliced cheddar isn't recommended for freezing due to greater texture loss.
How long does cheddar cheese last in the fridge after opening?
An opened block of cheddar lasts 3-4 weeks in the refrigerator when wrapped tightly and stored at or below 40u00b0F. An unopened block can last up to 6 months in its original packaging.
Does cheddar cheese need to be refrigerated?
Yes. Cheddar should be kept refrigerated at or below 40u00b0F. It can sit out at room temperature for up to 2 hours safely, or just 1 hour if the temperature is above 90u00b0F, but beyond that, it should go back in the fridge.
How can you tell if cheddar cheese has gone bad?
Visible mold that is red, black, or fuzzy green is the clearest sign to discard it, as is widespread discoloration. A strong sour or ammonia-like smell and a slimy or mushy texture also mean it's past its prime. Small white mold spots on an otherwise firm, normal-smelling block can sometimes be scraped off, but when in doubt, throw it out.
How long does shredded cheddar cheese last in the fridge?
Pre-shredded cheddar typically lasts 3-4 weeks refrigerated when the bag is resealed tightly after each use, similar to an opened block. Because shredded cheese has more surface area exposed, it can dry out or pick up fridge odors faster, so check it before use.