rough-and-ready Exhibiting vigor and vitality which, though unrefined and perhaps indelicate, is appropriate for dealing with a given situation; crudely efficient; rough in manner, but prompt and effective in action.
1 The exact answer to the question âHow long does an unopened package of sour cream last?â depends to a large extent on storage conditions â to maximize the shelf life of sour cream, keep it refrigerated at all times.  How long does unopened sour cream last after the sell-by date? Sour cream will generally keep for one to two weeks after the sell-by date on the package, assuming it has been continuously refrigerated; be sure that the temperature of your refrigerator remains at or below 40Â° Fahrenheit at all times.
So, I now have a 3 lb block of cream cheese in my fridge, with a best if used by date 5 months from now. How long will this cream cheese keep once the package is opened? I'm wondering if it's safe to keep it in the fridge, or if I should freeze part of it.uthie-I've never had sealed never opened cream cheese, spoil in the frig. Before on BTD, I bought cream cheese in November and used, it through the winter, for holiday things, never a problem.