I just started mine last night. The juice bag was full of pressure, like pushing the box out of square. I had set it off to the side and didn't notice until last night so I opened it quick and mixed it up. Not sure what is going on. I often store kits for a few months until I get several and then do them back to back. Starting SG was 1.080. It’s was fermenting this morning when I checked on it. Anyone else have a similar symptom?