Hi any help much appreciated, I'm doing my first ever cider it's a ON THE ROCKS MIXED BERRY. It's been 7days fermenting and hydrometer reading is below 1(ready for 2nd fermentation) I've got a pressurised barrel to do this in. So I thought I was all good to go, but when opening the lid of 1st fermentation barrel it's still slightly bubbling seems as if theres still abit of activity??? Is it OK to move onto 2nd fermentation or do I have to wait??? As I've only done wine before and with that fermentation had completely stopped??? HELP!!!