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.
Cottage cheese â should last 10-14 days after the date on the carton (or 10-14 days after opening if this period ends before the printed date). Mayonnaise â if itâs unopened and refrigerated, it can be kept for 30 days after its expiration date or 3-4 months after opening. Yogurt â will be good 7-10 days after its âsell-byâ date. Eggs â if theyâre properly refrigerated, they should last at least 3-5 weeks after the âsell-byâ date.