@youngdh care to share you recipe?
I do BIAB, small batch. Here's my recipe:
ABV: 4.5%
OG: 1.05
IBU: 43
B:G ratio: 0.86
Color: 55.5 EBC
Target Volume into packaging: 2.7G
Kettle efficiency: 70%
Efficiency into fermenter: 63.1% (due to over production of wort that won't fit into fermentor)
Mash: 45 mins at 152F (or until I hit my target gravity into kettle)
Target pH: 5.2
Boil: 60 min
Ferment: 7 days at 66F w/ WLP004 Irish Ale yeast
Diacetyl rest: 7 days at 70F
Total water needed for target vol into packaging: 4.9G
VIB: 4.41G @ 1.038 SG
Volume Ambient Wort (post boil): 3.23G @ 1.05 SG
VIF 2.91G @ 1.05
VIP: 2.69G @ 1.015 SG assuming apparent attenuation of 70%
Water treatment (I start with distilled water and build it up to target the Wicklow Mountains water profile in Ireland. That's the water Guinness uses):
Ca:18, Mg:2, Na:13, SO4:22, Cl:20, HCO3:35
Grain Bill:
67% Maris Otter Pale Malt (4.33lbs)
25% Flaked Barley (1.61 lbs)
4.1% Roasted Barley (591 EBC) 0.26 lbs
2.8% Dehusked Carafe III (1493 EBC) 0.18 lbs
1.5% Acidulated Malt 0.1 lbs
Hop Bill:
UK East Kent Goldings Pellets (6.5%AA) 1.123 ounces at 60 min
Water treatment into mash for my grain bill and total water volume:
1 gram Baking Soda
0.6 grams Gypsum
0.85 grams CaCl
10 ml 10% Phosphoric Acid
0.5 grams Epson Salts
Fermentation:
7 days at 66F using WLP004 Irish Ale Yeast
7 day diacetyl rest at 70F
no secondary
no crash chill
Required volumes of CO2 (force carb) 1.9