Last fall I tried to make an Ice Cider. I have bought 3 gallons of pasteurized apple cider in plastic jugs. Original gravity of the cider was 1.050. I assumed, that getting one gallon it to 1.135-1.150 would take 3 gallons of regular cider.
I froze all jugs in my chest freezer to solid state. Then I started to unfreeze the cider into a pot (turning it up side down). After two hours, I had jug of white colored ice filling it to almost 50% with half gallon in the pot. When I checked the gravity of the iced cider, I was surprised because it was only 1.060.
What was I doing wrong? Is there some sort of secret on how to unfreeze the cider? Was it because the way the cider was pasteurized initially?
Any help is welcome.