It has been a while since any additional comments have been made, but here goes. I have in my grubby hands a 32 ounce bottle of Fast Fruit Montmorency Tart Cherry concentrated juice produced by Brownwood Acres in Eastport, MI., up in the Traverse City area. Should be close to the same product. The label states "Made from approximately 25 pounds of tart cherries." Using that number, you should be able to devide by the number of pounds of cherries you desire per gallon. Never tried it -- yet! Although I just used some as an F-pack on a Vintner's reserve kit fermented last year. Probably a little later this season and I am going to do at least a 3 gallon batch with a minimum of 1 of these 32 oz bottles.