Continued 2...
To review, this Beer Machine APA mix was pitched, allowed to ferment for 19 days at room temperature, then chilled and tasted. It was young at that point, and when chilled the relief valve was not strong enough to hold good carbonation even with continued Co2 cartridge additions twice per day.
I let it ferment/condition for an additional 11 days at room temperature. Worth noting is that the relief valve does work "OK" at room temperature. It maintained pressure at 7 psi for the duration with just one blast from the cartridge.
I filled a growler at room temperature and chilled it for an hour. All carb was lost as it chilled.
Tasting side-by-side with Bud Light as a reference point, this home brew was aged well and without any off flavors. It is on the sweet side, and there is a slight bitter. It is a little too sweet to be a favorite for me, but I think that many would love it. Of course, without carb; things are skewed and it is likely even better when carb'ed.
I'll conclude a few things at this point for the Beer Machine:
1. There is no magic ultra speedy fermentation miracle here
2. The mix made a decent beer after aged for 4 weeks
3. There is a design flaw in the relief valve operation when chilled.
I'll add a feature to fix the relief valve so that it holds pressure when chilled. The next batch for it will be a BIAB APA.