Q: How long does Greek yogurt last?
A: To answer this question, we are assuming that the Greek yogurt is properly sealed and refrigerated at the appropriate temperature. It probably goes without saying that Greek yogurt will spoil over time, it is just a matter of when.
Greek yogurt will typically have a sell by date stamped on the container. It is usually safe to eat Greek yogurt approximately 14 days beyond the printed date on the container. This is assuming the container has not been opened. Once opened, the yogurt will last about 7 days.
The taste of the Greek yogurt may become slightly more sour as the product ages. It is best to discard the product if there is a strong (unnatural) sour taste or if there is a yeast type smell coming from the yogurt. Additionally, you should not consume the yogurt if there are any signs of mold or discoloration.
A watery substance may form on the top of the Greek yogurt as it sits in the refrigerator. This is liquid whey settling to the top and it is normal. The whey liquid actually contains calcium and potassium. It is beneficial to stir it back into the yogurt rather than discard it to benefit from the nutrients.
You are able to freeze Greek yogurt, but there may be a slight texture change when the yogurt is thawed for consumption. You should always thaw Greek yogurt in the refrigerator to avoid bacteria contamination. Greek yogurt will last about two months in the freezer after the sell by date. It is best to sample a very small portion after it is thawed to confirm it is still edible.
Image: Celeste Lindell