Hydronephrosis of the Kidney - definition, symptoms and treatment. A circumstance in which the renal pelvis, the portion of the kidney that collects URINE for passage from the kidney via the URETER, dilates and enlarges.
If you've bought frozen shrimp in their original packaging, the packaging will often have a Use-by or Best before date on it. That's the vendor's estimate of how long your shrimp will retain their best flavor and quality.Usually it will be 4 to 6 months for uncooked shrimp, or about half that for cooked.You can still eat them after that time -- they'll be safe for as long as they stay properly frozen -- but their texture will suffer, they'll begin to acquire off-flavors from the freezer, and eventually they'll succumb to freezer burn.ow to Do It. 1  For the best storage life, divide the frozen shrimp into meal-sized portions as soon as you get home. 2  Use a vacuum-sealer, if you have one, to extract as much air as possible. 3  Otherwise, use regular freezer bags but suck out as much air as you can, through a straw, before sealing.
As long as they were cooked (and I would have to beleive they were if you bought them at a store), one can keep crab on ice or better yet in the freezer for 6 months or more even if they're not cleaned.