60 minutes into the mash and a refrac reading gives me 1.030, 5 points under expected, 30 minutes later the reading was 1.033, only a loss of 2 points from my expected eff. into the boiler. To be honest that is better efficiency than I thought I would get, so obviously the extra 30 minutes mash time helped a lot.
I recirculated the wort for about 10 minutes and then pumped to the boiler, Volume was spot on 33lt and the SG read 1.033 so an efficiency of 68.6% into the boiler, normally I would get 70% but a drop of 1.4% is not worth worrying about. Starting the 90 minute boil now so all should be as normal from here on in.
This method is very simple, heat all your water, dump in the grains, stir, leave for 90 minutes, Recirculate and pump to boiler.
Tiny efficiency drop, but it's so close to being on the money it's not worth worrying about.
Temp in the mash tun stayed fairly constant with only a 1 degree drop over the 90 minutes probably due to the fact the tun was so full.
I seemed to spend less time hanging around the brewery waiting for the batch sparges to complete ect.
I didn't raise the mash temp for mash out but my burner was turned on straight away and the wort was boiling within 10 minutes of the mash tun being empty. My slight eff drop could have been caused by not raising the temp to mash out.
This method did not really save any time on the day due to the extra 30 minutes mashing.
I will let everyone know how the beer tastes in about 3 weeks when it is kegged. I will be interested to see if the maltiness or mouthfeel are effected by this method.
So to sum it all up mashing with all of your brew water did not really effect my efficiency or clarity of the wort into the boiler, it's simple and easy to do, and I think I saved electricity by not having to raise the sparge temps as I do when I batch sparge.
I will leave it up to you fellas to work out the hard part :blink: , doing it all in one vessel :lol: .
Cheers
Andrew