An opened container of skyr can typically last 5 to 7 days when stored properly in the refrigerator at or below 5°C. Refrigeration is crucial for maintaining the quality as the cold temperature helps slow down the growth of bacteria and other microorganisms that can cause spoilage.
Check our article What is skyr? if you want to know more about the traditionally Icelandic dairy product.
How to store skyr correctly?
Skyr should always be refrigerated. The sooner you put it in the fridge, the better. Aim to refrigerate it within two hours of purchase or opening to minimise the risk of bacterial growth and spoilage.
When storing skyr, make sure to seal the container tightly to prevent air and moisture from entering, which can speed up spoilage. If it came in a resealable container, it is best to use the original lid to ensure a secure seal. Otherwise, transfer the skyr to an airtight container or cover it tightly with plastic wrap. This extra layer of protection helps maintain its freshness and prevents potential contamination.
To preserve the flavour and prevent cross-contamination, store skyr separately from strongly scented foods in the fridge. Consider using separate storage areas or refrigerator drawers to keep it isolated from potential odour sources. When serving, always use clean utensils or spoons to avoid introducing bacteria into the container. This helps preserve its freshness and prevents potential contamination that could shorten its shelf life.
If you want to extend the shelf life further, you can also freeze skyr. The frozen skyr can be enjoyed as an alternative to ice cream or added to different recipes. See our article about cooking with skyr for more inspiration.
How to tell if skyr is bad?
- Start by smelling it. If it emits a sour or off odour that is noticeably different from its usual mild tanginess, it has probably gone bad.
- Next, look at the texture. If you notice clumps, separation of liquid, or an unusual slimy or grainy texture, it could be an indication of spoilage.
- Take a close look at its appearance as well. If you spot any visible mould growth, which often indicates potential contamination, it is best to discard the product entirely.
- Lastly, taste a small amount. If you detect a sharp or unpleasant taste different from its usual flavour, it could be a sign that it has gone bad.
It is important to remember that these indicators may vary depending on the specific brand or variety. Always refer to the manufacturer's guidelines or any "best before" dates on the packaging for more accurate information.
But also remember that many products, including skyr, are often good after this best before date. The natural acidity of skyr makes it a very stable product, meaning that an unopened pot is likely still good even weeks after the "best before" date. As such, always do a smell, look, and taste test prior to simply discarding to enjoy the creamy-fresh taste of skyr and avoid unnecessary food waste.
