Homebrew What Not To Do: Grain to Glass Spontaneously Fermenting Beer (feat. Jenny!)

I’m going to teach you what happens when you let unfermented beer (with NO YEAST IN IT) sit in a sealed keg for 5 days. This video has an explanation of what went wrong, a full brewday and a review with Jenny!

Chapter links: 

00:00 – What went wrong

05:05 – Brewday

13:55 – Review with Jenny 

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Clawhammer Supply 120V Electric System (used as a kettle) here

Anvil propane burner here

Blichmann Riptide pump here

Monster Mill here

Grain scale here

Hop scale here

Jaded Immersion chiller here

Torpedo Keg here

Floating Diptube here

Statis Glycol Chiller here 

Hudson sprayer for sanitizer here

Refactometer here 

Brewfather App here

NEIPA (not really though) Recipe

New England IPA

8% / 15.5 °P

All Grain

BIAB (No sparge)

75% efficiency

Batch Volume: 8 gal

Boil Time: 60 min

Mash Water: 10.63 gal

Total Water: 10.63 gal

Boil Volume: 9 gal

Pre-Boil Gravity: 1.060

Vitals

Original Gravity: 1.068

Final Gravity: 1.009

Mash

Temperature — 152.6 °F — 45 min

Malts (18 lb 3.4 oz)

15 lb 9.7 oz (85.7%) — Rahr Pale Malt, 2-Row — Grain — 1.8 SRM

2 lb 9.6 oz (14.3%) — Briess Oats, Flaked — Grain — 1.4 SM

Hops (16.12 oz)

4.44 oz (11 IBU) — HBC 586 13.3% — Aroma — 10 min hopstand

1.48 oz (3 IBU) — Amarillo 10.2% — Aroma — 10 min hopstand

1.48 oz (4 IBU) — Galaxy 16% — Aroma — 10 min hopstand

Hopstand at 176 °F

Miscs

11.782 g — Calcium Chloride (CaCl2) — Mash

4.073 g — Epsom Salt (MgSO4) — Mash

4.073 g — Gypsum (CaSO4) — Mash

Yeast

Mystery Yeast

1pkg — Fermentis S-04 SafAle English Ale 75%

1pkg — Fermentis W-34/70 Saflager Lager 83%

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