The CPAP has a good filter and as they are quite expensive, I would never suggest anyone spend even a nickle on this set up. I mentioned it only because I had one in a bottom drawer doing nothing and it serves the purpose well.
I took an old CPAP machine and cranked the pressure up to max. Used an O2 hose fitting (aka injector) on the large hose outlet and a length of O2 hose to the yeast starter bottles. Used StarSan to clean the hose. It's a little weird because the CPAP thinks the patient is having a fit so the...
I did a clone of Delirium Tremins and so far, it's worked perfectly. I tasted it when I racked it 5-6 weeks ago and it's good.
The ferment stalled in the 1st fermenter at about ABV 10.5-11.5% and started again after being in the 2nd fermenter. It's been slow and steady up until a short while...
Followup...
After a few days in the glass bottles, I noted small bubbles forming on the surface. The yeast has started to work again. Slowly. Exactly like I want it to do.
Thanks. Your "If it ain't broke, don't fix it" advice was right on the money.
Regards,
I didn't measure the gravity. Here's the cut 'n paste from my notes doc below. I didn't discard any of the top wort as noted, I added all of it because I wasn't sure where the viable yeast was. In suspension? In the bottom? I also didn't record times but the photo above was probably taken 18-20...
Amazon. Search for "12 QRP PLASTIC LID AIRLOCK GROMMETS 1/16" Groove White Food Grade Silicone for fermenting in Mason Jars." $8.
https://imgur.com/a/6Pjslh1
There's a considerable air gap around the grommet so I used a hot glue gun to seal it. Made sure to squeeze it under the grommet. It...
https://imgur.com/a/EpjCFvk
I'm really careful about contamination. There's lots of air in the bottles and I slosh it around a bit. I also pour into the wort so it picks up as much air as possible. I'm looking to using a aerator for the next batch.
Need advice on adding a little yeast to finish the ferment and to bottle condition. Yes? No? What kind?
I made a 5 gal batch using a recipe from the local supply house for a Delirium Tremens clone. It was mostly DME with a couple of grains to season.
They were out of their preferred yeasts so...
Used to brew in Columbus, Ohio in the 1990s since I lived down the street from a brew supply place. Got back into it a few years ago for a while but didn't do very well. Getting back into it again. Keeping it simple this time.