Hi; I'm new here and you guys may kick me out when you find out how I make wine. Started out putting frozen juice, sugar, yeast, and water in a gallon jug, stretched a BIG balloon over the mouth of the jug and when it got real big and then got small again (if it didn't burst in between) the wine was ready. I've made like this for years and haven't upgraded a lot except for some 5 gal jugs and some air traps to go on top. I recently started a 5 gal jug of blackberry (cooked and strained blackberry juice) and a 1 gal jug of apple the same day. I set both out in the carport until they settled down in case they wanted to overflow or something like that. When I went to move them in the house this morning, the blackberry had quit working and the apple is still clicking right along. They were started on July 25 so it shouldn't be nowhere near ready to stop working. I read over some of the other post about wine that had slowed or stopped and they talked about checking the SG. I don't have anything to check the SG with. Are there any test I can do without sophisticated equiptment? Anyone have any suggestions for me to try?