Expiration & Storage Tips
When does cheese sauce expire?
Unopened store-bought cheese sauce usually has a shelf life of about one year from the production date; check the date on the package to be sure. Once you've opened the jar, it's best to use it up within two weeks. Homemade cheese sauce, on the other hand, will typically last three to four days in the refrigerator. If you decide to store cheese sauce in the freezer, it can extend its life for up to 6 months.
How do you tell if cheese sauce is bad?
Bad cheese sauce will often have a sour smell, similar to spoiled milk. You may also notice a change in color or the presence of mold - if there's even a speck, it's time to toss it. The texture might also change, becoming lumpy or more watery.
Tips for storing cheese sauce to extend shelf life
• Always store your cheese sauce in the fridge, even if it's store-bought. The cool temperature helps slow down the growth of bacteria.
• If you've made a large batch of homemade cheese sauce, consider freezing it in smaller portions to make defrosting easier and to keep it fresh. Use airtight, freezer-safe containers for this.
• Always ensure your cheese sauce is properly sealed after each use - this helps minimize exposure to air which can cause it to spoil faster.
• If you’ve frozen cheese sauce, remember to defrost it slowly in the refrigerator, not on the countertop, to prevent bacterial growth. Lumpy texture after defrosting is common. Stir well to smooth it back out.