Mash hop IPA experiment day today.
Biab.
148f mash
3kg Maris Otter
40g Acid malt
6g Gypsum
1.5g CaCl
0.5g Salt
20L of mash water
Brewer's friend estimated mash water profile:
Ca+2: 100 ¦ Mg+2: 1.4 ¦ Na+: 14.6 ¦ Cl-: 58.3 ¦ SO-2: 179.1
Estimated mash ph: 5.38 (I can't find anything on what effect hops have on mash ph, so my mash ph may well be off)
67g Centennial pellets
48g Columbus pellets
Very thin mash 6.8L/KG or 3.2qt/lb
Beersmith calculated mash IBU (Tinseth) of 56.6
60 minute boil with 0 hop additions. 160g sugar (5%) and 1/2 whirflock tab added at 15 minutes left in the boil.
14 litres of 1.056 OG (1.057 estimated) into the fermenter. Estimated FG: 1.007
1 vial of WLP001 & 1 Vial of WLP090 (had ordered 2xWLP001 but my vendor's website inventory was wrong, so ended up with 001 & 090)
This shaved 2.5 hours off my brew day 'cause I'm usually messing about with sparging, convoluted steeping temps and times after flameout, and filtering hop debris out as the wort goes into the fermenter.
Initial taste test of wort before fermentation indicates both bitterness and flavour survived the boil with negligible loss to both. I can't wait to see how this ferments out.