How long will ice cream keep once it has been opened?

It depends on how the ice cream is wrapped. Ice cream is subject to textural changes if not covered properly. It can also pick up freezer flavors. For best results, place plastic wrap on the surface, then firmly re-affix the lid.
 
Unless quality degrades more quickly, all ice cream--refrozen or otherwise--should be consumed within 2-4 months of purchase.
 
Source(s):
DavidLebovitz.com "How Long Does Ice Cream Last?"
FDA "What Are Some Food Storage Guidelines?"

 
 

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