Wyeast’s description of Trappist High Gravity 3787 saying that it “benefits from incremental feeding of sugars during fermentation.” This has got me looking into this process. My plan is to feed an AG brew using John Bull LME. For more information I emailed Wyeast and got this reply:
I would let it drop to about 1.050 before dosing. If you are dosing
with LME, be aware that this will have a pretty high terminal gravity
due to the percentage of unfermentables in the LME. I.e. this beer may
be pretty sweet. Also, is the LME microbiologically stable? If not you
may want to boil with some water before dosing. As for O2, your normal
oxygenation will be fine.
This raises two questions.
First has to do with the “high termanal gravity” of LME. I was under the impression the LME was just concentrated wort and would have the same potential SG as using the same type of grain.
The other thing is the “microbiologically stable” reference. I haven’t been able to find any information on John Bull products on the Internet. I was under the impression that all quality LME was safe for “no boil” brewing. Does anyone have information on this?