Using Frozen Concentrate is becoming popular in my circles recently. I had a bit of trouble trying to figure out how to put the concentrated juice into the recipe builder. I decided ultimately to just list it as cane sugar aka sucrose, because ultimately on the can, what is listed IS sucrose. I took the amount of sugar per serving and multiplied it by the amount of servings in the can. Example: In my store brand 100% juice there is 27g of sugar per serving. There are 6 servings per can which = 162g of sugar per can. I wanted to use 9 cans which is 1458g. I used google to find the g to lb equivalent 1458g = 3.21lb of cane sugar I've tested it in recipes twice and it was almost spot on. I was off by perhaps .2 ABV which for an extract/partial mash brewer, is good enough for me. Note: If your juice contains preservatives such as potassium metabisulfite it may affect your fermentation. I made sure to get cans that contained only a bit of ascorbic acid (vitamin c) which I would have added anyway.