Not sure if this has been asked before - cannot find, so asking here. what is the (frozen) shelf life of FWK juice?
Searching online, it seems 8 to 12 months is the range for best quality of grape juice when frozen. It's safe beyond that, but not clear if it's as good. Thoughts?
How long should I expect it to last in the fridge while waiting to be made? Again, searching online, 3-5 days for unpasteurized juice seems to be the limit, so if I can't get to it within that period, it would seem re-freezing is needed.
Thanks for any insight.
In my opinion, that kind of advice you find online is boilerplate language meant to be idiot proof (and lend liability protection!). A lot depends on the type of freezer. If one's freezer is frost free it is going through a periodic heating cycle, typically once a day, and the temperature of the contents of the freezer fluctuates accordingly. This temperature fluctuation is not good for long term storage.
On the other hand a deep freezer, i.e. one that requires periodic manual defrosting, gets cold and stays cold. This type of freezer is capable of storing foods with very little if any change beyond what the freezing process itself imparts IF properly packaged.
The packaging is very important here.
Anecdotally I can offer this experience, I defrosted my chest freezer last spring and found vacuum packed fish fillets. It was Tautog I had caught, cleaned, vacuum packed in an oxygen barrier bag, and frozen. The date I had written on it was "Mar 25 2007". 14 years in that freezer!
Tautog are somewhat difficult to catch and very tasty fish and these were large fillets so I knew that this had been a very old Tog, I felt sick and decided to thaw it out and see what it looked like. It looked fine, smelled fine, felt fine! So I cooked it up and I (and others) couldn't tell it was that long frozen. Plus I've had 4-5 year old fish and game deep frozen many times.
Now I'm not advising anyone to try that with their FWK but a true deep frozen state pretty much ceases deterioration provided it is protected from oxygen and moisture loss