lowtones84
Well-Known Member
Yeah, English yeasts can be a bit finnicky. I might just give the bucket a gentle swirl once a day.
To me two days chilled is minimum. But you have a lot of beer on your hands for one person, so trying one after chilling overnight wouldn't be too much of a waste.
Yes, because your original priming sugar fermented out, and is no longer available to carbonate the bottled beer.
It sure isn't worth dumping without even letting a few bottles condition and age.
But, my friend, this is why brewing 5 gallons of every single beer is not always prudent! Strongly suggest again that you try some small batches as you get used to the ins and outs of brewing. Or at least do that for recipes with lots of funk and experimentation in them, such as anything remotely associated with guava.
Your stout is done, done, done, and perhaps a bit abused by your attempts to resuscitate it. Bottle at least a portion of it and move on. I don't think anyone asked about your mash temp in this thread. What was it, and are you sure? A high-ish mash will easily cause English yeasts to attenuate in the 60% range, as yours did.
What were you using to measure temp, and what was the mash temp exactly? I would still bottle it just to see the result of all of that.
Depending on how accurate your crystal thermometer is, and the fact that it sounds like you were mashing with an active flame stovetop, your mash temperature may have been significantly higher (or just inconsistent) than expected. If you're accidently mashing around 160 or even a bit higher you'll likely end up with a less fermentable wort, which is really the only explanation for an otherwise extract recipe ending that high, especially after being transferred and more sugar added to restart fermentation. That should have kicked even a very sluggish yeast back into action.
No. A high mash temperature will still extract sugars (giving you the correct OG), but more sugars that are unfermentable. There are many variables, but the basic idea is that the lower end of mash temperatures (I consider below 150F) produce a more fermentable wort and higher mash temperatures (upper end of 150F) produce a less fermentable wort.
This is almost certainly what happened, plus a bit of lazy yeast likely. So you need an accurate thermometer, and once you stir in the mash well and find the temperature is correct, take it off of the burner and wrap it in a sleeping bag, heavy coat, whatever really to insulate. When I do small batches indoors this is the method that I still use and it works totally fine.
That was a good introduction to the processes of All Grain brewing for you!
Good luck! As you get into mashes and stuff like that, you really need to do some internet research. A lot of people also like John Palmer's How to Brew book. Basic technique and some grasp of the scientific principles at play starts becoming more important. Yes, it gets more complicated, but also more fun and rewarding.