
After the rapturous response I had at LAB for my Dunkel Hefeweizen (not... it seemed to have oxidised from too long in the secondary

2kg Wheat malt
1kg Vienna malt
500g crystal wheat malt
200g chocolate malt
52g roasted wheat malt
Mash schedule:
½ hour @ 50 ̊C
1 hour @ 66 ÌŠC
Boiled 1 hour with 36g 2007 home-grown Hallertau hops and 1 lidful of Irish Moss.
Boiled further 15 minutes with 10g 2007 home-grown Hallertau hops while heating quadruple immersion chiller to sanitise.
Force-cooled to 23.8 ÌŠC from 95 ÌŠC in about 11 minutes.
Pitched Danstar Munich German Wheat Beer yeast slurry from when I racked my Dunkel Hefeweizen on the 31st of October. It had been sitting in a 2l demijohn under clingfilm in my 8 degree beer fridge. I did the acid wash using more-or-less the Ant Hayes method, then gave it half a litre of canned wort to get going with while I finished the boil and chilling. 21 litres including the starter.
OG 1048 @ 20 ÌŠC = 1048.8 @ 15.5 ÌŠC
Grain bill:

CU mashing, with revamped U-tube and the elephant's coke spoon:

Mashing with the HERMS, showing the pipework horizontal rather than going down to the floor and up again, also new-ish shiny HLT (EDIT: separate post now on line):

The heat exchanger in its little jacket:

The slightly-revamped pump (air bleed valve idea stolen from adm - thanks! Also splash shield made from sheet ali and and less-wobbly handle):

Preheating the sparging tee on top of the shiny HLT:

Sparging (into my second boiler so I could get it going without the wait to go back up from post-sparge 50 ÌŠC to boiling):

The boil (there is a hop bag in there somewhere):

Chilling with the quad immersion chiller while recirculating wort:

Racked it on the 17th of January, Quite sweet and thick, slight Marmite note, some hop there.
Bottled on the 1st of February. PG 1017.2 @ 15.5 ÌŠC so 4.07% ABV at this point using HMRC fudge factor of 0.129. Less Marmitey than previous sampling.
I'm not sure if I get the Marmite vibe from lots of dark malt or from yeast autolysis - or both. Test further when it's had a month in bottle.