Taken from Potato Vacation Beer on homerbrewerassosiation.org with modifications.
Most recipes call for bre-boiling the potatoes before mash. The one above is the only one I saw using raw potatoes. http://cbladey.com/patat/SpudBrew.html
https://byo.com/article/brewing-with-potatoes-techniques/
Fermentables
26% - Pilsner - US
3.5
34
1
Mash
11% - Goldpils Vienna
1.5
35
4
Mash
7% - Dry Malt Extract - Pilsen - US
1
42
2
Extract
7% - Bonlander Munich - US
1
36
10
Mash
48% - Potatoes
6.5
7
1
Mash
Hops
Relax
1
Pellet
Boil
30 min(s)
12.6
38.9
Elixir
1
Pellet
FlameOut
0 min(s)
8.2
0.0
Yeast
Fermentis Safale K-97
81%
Other Stuff
Whirlfloc Tablet
0.5
each
Mash
Mash Steps
No mash steps in this recipe
Special Instructions
1.Start grain mash at 152F and hold for 30 minutes. Water should not be over grain bed.
2.Macerate potatoes in a food processor. Make a thick mash with water to 156.
3.Gently stir postatoes into the mash tun. At hot water to maintain 156F. Hold 20 mins.
4.Add water to hit 172F until about 2 in above mash. Hold for 20 minutes.
5.Recirculate 8 quarts of wort through mash. Empty wort ito boil kettle.
6.Sparge 175F water through wort until 6.5-7 gallons are in boil kettle.
7.Ensure pre-boil gravity is 1.044. Add pilsner extract if necessary.
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