BREWHALLA
BREWS TO TAKE YOU TO VALHALLA
WHAT WOULD YOU LIKE TO DO?
LET'S BREW!
Design a recipe, use your own, or let AI find one for you
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MY ARSENAL
Log your malts, hops, and yeast on hand
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BREW TOOLS
ABV, IBU, refractometer, gravity & more calculators
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How do you want to start? 🌾
Pick a recipe source
📝
My Own Recipe
Start from scratch and build it yourself
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🤖
AI Recipe Finder
Claude searches the web and suggests popular homebrew recipes
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BrewHalla
📜Recipe
Malt
Hops
Yeast
Water
🔧Tools
⭐Arsenal
⚙️Equipment
📒Batch Log
⚡Stats
⏱️Timer
⚔️
RECIPE NAME
⚙️ BATCH
SIZE
gal
BOIL VOL
gal
BOIL TIME
min
EFF
%
Beer Style
📊 LIVE SPECS
🍻 ABV 5.8%
🌿 IBU 38
🎨 EBC 18
Amber
🎯
1.058
OG
✨
1.012
FG
⚖️
0.66
BU:GU
MALT BILL
tap row to edit
MALT
EBC
AMOUNT
%
🌿 HOPS
tap row to edit
HOP
AMT
TIME
ADDITION
IBU
UTIL%
🧫 YEAST
🧫
—
Clean & Neutral · Ale
FG range: 1.007 – 1.014
ATT
%
✏️
Pitch Temp
Ferm Temp
💧 WATER ADDITIONS
→ Water tab for full profile
Set target profile in Water tab
🔥 MASH
Single Infusion
Step Mash
Decoction
Mash Temp (°F)
Mash Time (min)
75%
Mash Eff
—
Grav Pts
—
°Plato
Single infusion · 152°F / 60 min → ~75% efficiency
🌾 Malts
🔍
📋 In This Recipe
SRM ~9 · Amber
Est. OG: 1.058
🌿 Hops
🔍
📋 In This Recipe
📊 IBU Estimate
🧫 Yeast Strain
🔍
🌡️ Fermentation
Pitch Temp
Ferm Temp
🧪
Est. Attenuation: 77%
FG adjusts automatically
💧 Water Source
💎 RO / Distilled
🚰 My Tap Water
🎯 Target Water Profile
⚖️ Balanced
🌿 Hoppy
🌾 Malty
☁️ Soft
🏆 Burton
✏️ Custom
🧂 Calcium (Ca)ppm
🔩 Magnesium (Mg)ppm
🧊 Sodium (Na)ppm
⚗️ Sulfate (SO₄)ppm
🫧 Chloride (Cl)ppm
🔬 Bicarbonate (HCO₃)ppm
🧪 Required Mineral Additions
For 5 gallons of water:
🧪 Mash pH & Acid Additions
Target range: 5.2 – 5.4
5.3
4.5 Very Sour5.2–5.4 ✅ Ideal6.5 Flat
ACID ADDITION CALCULATOR
Current Mash pH
Target pH
Strike Water Volume (L)
Grain Bill (kg)
⚠️ Add acid in small increments and re-check with a pH meter. These are estimates based on average grain buffers.
🔬 DOSE SIMULATOR — WHAT pH WILL I GET?
Enter the amount of acid you're about to add and see the resulting pH.
ACID TYPE
AMOUNT (ML)
⚙️ Equipment Profiles
🎚️ Visual Specs
🌿 IBU 38
🍻 ABV 5.8%
🎨 SRM 9
Amber
🍻
5.8%
ABV
🌿
38
IBU
🎯
1.058
OG
✨
1.012
FG
🎨
9
SRM
⚖️
0.66
BU:GU
📋 Recipe Summary
🌾 Total Grain11 lbs
🌿 Total Hops1.5 oz
🧫 Yeast—
💧 Batch Size5 gal
🍺 Beer Style—
🍬 ADJUNCTS
Sugars, syrups & unmalted additions that contribute fermentables but not malt character.
No adjuncts added yet.
Tap + to add sugars, syrups or unmalted grains.
📊 ADJUNCT CONTRIBUTION
🎯
+0.000
OG Boost
📈
+0.0%
ABV Boost
⏱️ Brew Day Timer
60:00
BOIL
🔥 90 min Mash
🌡️ 60 min Boil
🌿 15 min Hops
⚡ 5 min Whirl
📋 Brew Day Checklist
⭐ MY ARSENAL
QUICK ADD
🔍
ITEM
QTY
UNIT
COST
🔧 BREW TOOLS
🌾
Mash Water Calculator
Strike volume, strike temp & sparge water from grain weight
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🍺
ABV Calculator
Actual ABV from OG + FG readings
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🌿
IBU Calculator
Tinseth bitterness at any boil time
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🎨
SRM / EBC Colour
Beer colour from grain bill (Morey)
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⚗️
OG / FG / ABV (All Grain)
Pre-boil OG, OG, FG and ABV estimate
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🍾
Priming Sugar
CO₂ volumes → sugar at bottling
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🧫
Yeast Pitch Rate
Cells needed, starter size & DME
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🔬
Refractometer / Brix → ABV
Brix to SG · OBrix + FBrix → corrected FG & ABV%
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🌡️
Hydrometer Temp Adjust
Correct SG reading for sample temp
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💧
Dilution / Boil-Off
Hit target gravity by diluting or boiling
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🍬
Brix Converter
Brix ↔ Specific Gravity ↔ Plato
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⚙️
Brewhouse Efficiency
Actual extraction % and PPG
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♨️
Mash Infusion
Boiling water to hit new rest temp
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🌾
LME ↔ DME Converter
Convert between extract types (same gravity)
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🍇
Chaptalization
Sugar addition to hit target Brix
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🧪
Water Chemistry
Salt additions for target mineral profile
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💨
CO₂ / Kegging Pressure
PSI needed to hit target carbonation
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🔄
Hop Substitute Finder
Flavour-matched swap when a hop is unavailable
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⚖️
Recipe Scaler
Scale current recipe to any batch size
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