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Yeah makes sense not to change horse midstream. Sorry for the poor explanation. Posting a diagram of the concept for those interested - might make a bit more sense. By "fermenter volume changes" i mean of the liquid not the vessel. E.g. cold crashing.

I found it easier to use two soft drink bottles, vinyl tubing and a couple of adapters, to make both a blowoff airlock, and a vacuume trap. Tube it so sanitizer can flow from one of these two bottle to the other (not exit the airlock/vac-trap), and use enough sanitizer to ensure that one of...

Unlike almost every cars speedo which seems to be reporting high (tricking drivers into driving slower) the KL grain weight tends to be on par or better. I'd rather have a little extra than ever be under. It's not like a butcher where you end up paying more when they sneak more than you order on...

Haha .. cheers. Right you are Elmo! Im off by factor of ten. Memory aint what it used to be. Not sure what the protocol is, but I know someone will read what i wrote and remember the wrong bit so I will leave an edit note.

I mostly mean for home brewers fermenting in a pressure vessel, with a spunding valve to control the pressure, and a second pressure relief valve for safety. Non pressure vessels don't build much pressure from depth, but it's about 1.5PSI per S.G. per meter. Example: Doing a gravity ferment in...

For those who don't speak German, I offer my rough translation as an Aussie who studied the language in school decades ago. Hope this is OK. It's not an exacting "transliteration" but I tried to capture the vibe. In my beer cellar, beer is lagered upto 10 years. Especially Barley Wine...

Have you tried confirming the measurements with a second method? Manual hydrometer or refractometer? If you have changed your TILT battery it may need recalibration. Multi-point calibration is best. I have seen ferments stall at lower temperatures, but your ferments there aren't low (unless...