I'm sure more experienced brewers on this forum have experienced this before but I've never seen anything like this!
I made a weizen 10 days ago and then made another batch today. Instead of buying more yeast I drained 2 quarts of yeast sludge from the bottom of the conical fermenter with the first batch in it (end of primary fermentation) and pitched it into the new batch. There was bubbling in the airlock within an hour, vigorous bubbling in 2-3 hours, and full kreusen in 4-5 hrs. I'm used to about a 12 hour lag time even when using a large starter. Is this typical when re-using yeast from a completed primary? If so, I'm going to do this more often.
I made a weizen 10 days ago and then made another batch today. Instead of buying more yeast I drained 2 quarts of yeast sludge from the bottom of the conical fermenter with the first batch in it (end of primary fermentation) and pitched it into the new batch. There was bubbling in the airlock within an hour, vigorous bubbling in 2-3 hours, and full kreusen in 4-5 hrs. I'm used to about a 12 hour lag time even when using a large starter. Is this typical when re-using yeast from a completed primary? If so, I'm going to do this more often.