I've had my first batch of cider fermenting since late May. I've re-racked a few times during this period. Even since my latest re-racking a few weeks ago, I'm still seeing tiny CO2 bubbles rising in the carboy and the airlock bubbles maybe once a minute, if that. This is my first batch of anything using a carboy. I was assuming the bubbling would stop when it was ready, but now I'm not entirely sure. Could someone shed some light into readiness indicators other than specifically relying on gravity readings? Also, what's a good way to take a gravity reading without contaminating the cider? Thanks.