Hi I know it looks like I am being pedantic here but I found thats not actually true.. Whilst I probably share a similar view that the time invested and I have to pick a window of time to do a brew I might aswell make it a large 23l batch
However when doing smaller batches heating up water for a 10 liter to mash, then to boil and cool down is considerably less
Us brewers do tend to be a bit pedantic Covrich, its the nature of adding accurate measure of grams of hops at different stages I think that does it !!!
I do take your point about taking a bit less time to heat water and do the cool etc. I reckon a 10l minimash takes me about 4 hours and a 22l BIAB all grain takes me about 5.5 hours (including cleaning up).
In terms of creating a brewing window with SWMBO there is little in it, I need a similar number of brownie points for either