Thus, -20 means that there are 20 threads in each inch along the thread. SS is the thread standard. Mostly, it is defined by the diameter and number of coils, but sometimes there are several standards (such as UNC and UNJC) that use the same numbers. Thus, this should not be omitted â also helping to prevent errors.
The precise answer depends to a large extent on storage conditions - to maximize the shelf life of opened sour cream, keep it refrigerated at all times. To maximize the shelf life of sour cream after opening, keep refrigerated and tightly covered, either in the original packaging or in an airtight container. Properly stored, an opened package of sour cream will generally last for about two weeks after opening, assuming it has been continuously refrigerated.
Once opened, heavy whipping cream will stay relatively fresh in the refrigerator for one to two weeks, notes the Wisconsin Nutrition Education Program. After that, discard the cream. Even ultra-pasteurized whipping cream should be stored in the refrigerator once opened. Like standard pasteurized cream, it will last up to two weeks when stored at below 40 degrees Fahrenheit in a refrigerator. The ideal temperature range for storing dairy products, such as whipping cream, is between 34 and 38 F.