Well this came to my mind several times when i brew but is not really a big deal for me. I know we all want higher efficiency with our setup but how bad it is for the regular 5gal homebrewer? I know if my efficiency is low i have to put more grains to the bill but for my 5 gallon batches is not that much and not that expensive. So i have some questions: Right now im at 67 to 70%, im cool with that, i just adjust my calcs to that %. But how low is really low? And other than spending more money in grains, whats another cons of low efficiency? I know for microbrewers or breweries thats a whole different subject, but im talking about the weekend brewer. Cheers and have a nice day all.
70% is fine on a homebrew. Consistency is more important to me personally. Too low would be like sub 65% to me.
At the homebrew level, predictability / consistency is much more important than efficiency. As you mentioned the consequence of lower efficiency, and yours isn't bad FYI, is more expensive in grains. Money $$$ in grains truly isn't a big deal at homebrew scale. However, poor predictability will resume in missing your recipe intent. True you can do changes on the fly to adjust thus too, but some times those changes for good or bad result in a different end product. I prefer to do things with purpose, rather than forced adjustments.
It means your system is flawed. Always annoyed me when you aim for 5 gals and have to boil to 4 to hit your OG. Seems like a waste of time. After some ingenuity i fixed my issues.
If you know your system efficiency, you just use a little more grain. No problems on a Homebrew level.
Now talking about efficiency, corona mill vs 2 rollers grain mill or 3 rollers grain mill? With the corona im getting that efficiency that i talked about 67 to 70% but i feel its too floury sometimes, i try to adjust to break the husk but with that mill is hard to do it. Will a better grain mill increase my efficiency?
A corona mill is designed to grind, not to crush. For brewing, grains should be crushed, not ground. Corona mills do look cool though. Regarding efficiency, that depends on your crush, but also on other factors. So I can't say that a proper roller type grain mill would increase your efficiency, but I suspect it would.
