Been brewing extract kits for a little over a year. When I bottle I prime with 2/3 C of regular sugar. I stir the bottling bucket every 6 bottles to keep the priming solution mixed well. I place bottles in 6 packs as I bottle and cap. Then stir again and repeat process.
My last 4 batches had 3-5 bottle volcanoes. These were random…one bottle from one 6 pack, etc.
Any ideas what I am doing that may be causing this?