Thursday, May 22, 2014

House IPA Recipe (Partial Mash)

I don't typically brew partial-mash batches, but I just brewed a mini-mash version of my house recipe today to try to save a little time. You may need to adjust or scale for your system. I use 70% efficiency and 3.5 gallons batch size to help account for all the wort lost to hops & dry hops. I'm typically at 80% efficiency on my system.

Note that I use Brewer's Friend's "No Chill" function to estimate the IBU's for my hop stand. I'm estimating a 90-minute hop stand is roughly equivalent to a 30-minute boil addition for calculating IBU's (this is based on experience with my system). Of course, that means nothing since beers usually max out in the 100 IBU range (this one measured at 98 IBU in a lab test).

Note: the hop bill is identical to my all-grain version. The only real difference is the fermentables.

Title: MiniMash IPA

Brew Method: Partial Mash
Style Name: American IPA
Boil Time: 60 min
Batch Size: 3.5 gallons (fermentor volume)
Boil Size: 4 gallons
Boil Gravity: 1.052
Efficiency: 70% (brew house)
No Chill: 30 minute extended hop boil time

STATS:
Original Gravity: 1.059
Final Gravity: 1.013
ABV (standard): 6.08%
IBU (tinseth): 512.97
SRM (morey): 5.67

FERMENTABLES:
2 lb - United Kingdom - Maris Otter Pale (34.8%)
4 oz - Belgian - Aromatic (4.3%)
3 lb - Dry Malt Extract - Extra Light (52.2%)
0.5 lb - Cane Sugar (8.7%)

HOPS:
2 oz - Citra, Type: Pellet, AA: 14.8, Use: Boil for 0 min, IBU: 121.33
2 oz - Apollo, Type: Pellet, AA: 18, Use: Boil for 0 min, IBU: 147.56
2 oz - Meridian, Type: Pellet, AA: 6.7, Use: Boil for 0 min, IBU: 54.92
2 oz - Motueka, Type: Pellet, AA: 7.2, Use: Boil for 0 min, IBU: 59.02
2.5 oz - Nelson Sauvin, Type: Pellet, AA: 12.7, Use: Boil for 0 min, IBU: 130.14
1.5 oz - Citra, Type: Leaf/Whole, AA: 14.8, Use: Dry Hop for 7 days
2 oz - Meridian, Type: Pellet, AA: 6.7, Use: Dry Hop for 7 days
2 oz - Motueka, Type: Leaf/Whole, AA: 7.2, Use: Dry Hop for 7 days
1 oz - Nelson Sauvin, Type: Pellet, AA: 12.7, Use: Dry Hop for 7 days

MASH GUIDELINES:
1) Infusion, Temp: 153 F, Time: 60 min, Amount: 7 qt, Sacc Rest

YEAST:
Fermentis / Safale - American Ale Yeast US-05

NOTES:
90 minute hop stand

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