Thanks for reply. I pitched in two of those at about 20 C. The thing is that the activator in the bags did not work. Usually the bag swells up after a few hours but that did not happen this time. I had 40 l wort going in to fermentation so I had no choice but pitching it in. I got new yeast...

Hi, I started a brew session last weekend and pitched a yeast that wont get started. Yesterday i pitched in new yeast that is active and working. I control the gravity with a tilt and I can see that it´s changing but very slowly. Normally the gravity drops fast in the beginning and in the end...