Settings
Configure Brewfather units, formulas, features, power-ups, integrations, and application preferences.
In the settings you can configure Brewfather to match your brewing setup, preferences, and integrations.
Common self-service fixes
Brew timers missing on brew day → Enable Features → Brew Tracker (see FAQ).
Next batch number is wrong → Update General → Next Batch # (see FAQ).
Inventory items seem hidden → Check Features → Inventory Stock and inventory filter settings (see FAQ).
General
Next Batch # — Set the next batch number to be auto-assigned when creating a batch
Language — Choose the app language (Auto, English, and 20+ other languages)
Theme — Switch between Auto (system default), Light, and Dark theme
Notifications — Configure push notifications for brew day reminders, yeast starter reminders, and more (see Notifications for full details)
Formulas
These settings control which calculation formulas Brewfather uses for ABV, Final Gravity, and IBU estimates across all your recipes. Changing a formula here updates calculations globally. For more on how Brewfather handles recipe math, see Calculations.
Alcohol By Volume — Choose between Standard and Alternative ABV formulas
Standard — Uses the traditional homebrewing formula:
ABV = (OG - FG) * 131.25. This is a straightforward linear approximation that works well for most session and moderate-strength beers. Recommended for beers under roughly 8% ABV.Alternative — Uses a more accurate non-linear formula:
ABV = 76.08 * (OG - FG) / (1.775 - OG) * (FG / 0.794). This accounts for the changing density relationship at higher gravities, where the Standard formula tends to underestimate alcohol content. Use Alternative for stronger beers such as barleywines, imperial stouts, and Belgian tripels.
Final Gravity — Choose between Normal, Simple, and Advanced FG calculation
Normal — Estimates FG based on fermentable type, yeast attenuation, and mash temperature. It accounts for how mash temperature affects fermentability and adjusts for unfermentable contributions from specialty ingredients. This is the recommended default for most brewers who mash their own grain.
Simple — Estimates FG based on yeast attenuation alone, applying the attenuation percentage directly to the original gravity. It does not factor in mash temperature or individual ingredient fermentability. Useful for extract brewing or when you want a quick, uncomplicated estimate.
Advanced — A more detailed estimate that considers the fermentability of individual grain additions, separating fermentable and unfermentable gravity contributions, along with yeast attenuation and mash temperature. This can give more accurate results for complex grain bills with a mix of highly fermentable and unfermentable ingredients, but may require well-calibrated ingredient data to be effective.
IBU Formula — Choose between Tinseth, Noonan, Rager, and Garetz IBU formulas
Tinseth — The most widely used modern IBU formula. It models hop utilization as a function of boil time and wort gravity using empirically derived curves. Tinseth is the recommended default for most brewers and produces reliable estimates across a wide range of recipes.
Rager — Uses a gravity adjustment factor when OG exceeds 1.050 and a tanh-based utilization curve. Rager tends to produce slightly higher IBU values than Tinseth. Consider it if your Tinseth-based predictions consistently seem lower than your tasting experience suggests.
Noonan — Based on a lookup table of utilization values indexed by boil time and wort gravity, as published by Greg Noonan. This table-based approach does not use a continuous curve, so it steps between discrete time and gravity brackets. It can be useful for cross-referencing with older homebrew literature.
Garetz — The most complex of the four formulas, factoring in boil gravity, altitude, and yeast flocculation in addition to hop weight, alpha acids, and time. Garetz typically produces the lowest IBU values of the available options. It may be worth trying if you brew at high altitude or want a more conservative bitterness estimate.
Features
AI Assistant — Enable or disable the AI Brewing Assistant chat interface
Brew Tracker — Enable real-time brew day tracking on batch cards (see Brew Tracker for full guide)
Inventory Stock — Enable inventory stock tracking
Allow Negative Inventory — Allow inventory stock to go below zero
Nutritional Information — Show nutritional information in recipes
Units
Choose between unit presets (Metric, Imperial, US) or configure each unit individually:
Display Gravity — How gravity values are shown throughout the app:
SG — e.g.
1.052SG Full — e.g.
1052(no decimal point)°Plato — e.g.
12.9 °PSG + °Plato — e.g.
1.052 (12.9 °P)(both shown together)Oechsle — e.g.
52 °Oe
Input Gravity — Format used when entering gravity values:
SG — e.g.
1.052SG Full — e.g.
1052°Plato — e.g.
12.9Oechsle — e.g.
52
Default Color — EBC or SRM
Grain Color — How grain color values are displayed:
Default — uses the color unit matching your Color setting (EBC or SRM)
°Lovibond — e.g.
3.5 °L°Lovibond + Color — shows °Lovibond with a color swatch
Legacy — uses the legacy color display format
Temperature — °F (Fahrenheit) or °C (Celsius)
Volume — Liter, US Gallon, Imperial Gallon, US Beer Barrel (BBL), UK Beer Barrel (BRL), or Hectoliter (HL)
Weight — KG, LB + OZ (pounds and ounces), or LB decimal
Hop — Gram, Oz, KG, or LB + OZ
Carbonation — CO₂-vol or g/L
Pressure — PSI, Bar, or kPa
Altitude — Meters or Feet
Diastatic Power — °Lintner, °IoB, or °WK (Windisch–Kolbach)
Date & Time
Date Input — Choose a locale-specific date format or Auto
Time Input — Choose a locale-specific time format or Auto
Recipe Designer
Autosave Recipe — Automatically save recipe changes
Mash Temperature Slope — Configure the mash temperature slope curve
BU/GU Style Guideline — Show BU/GU ratio on style guideline
RBR Style Guideline — Show Relative Bitterness Ratio on style guideline
Batch Setup
Additional Measured Values — Configure extra measurement fields to track in your batches
Power-ups
Power-ups let you connect brewing devices and services for automated fermentation logging and equipment control. Each power-up can be enabled/disabled individually and configured with device-specific settings such as logging IDs, URLs, and webhooks.
Available power-ups:
Tilt Hydrometer — Wireless hydrometer and thermometer
iSpindel — DIY digital hydrometer
Custom Stream — Custom data stream integration
RAPT — RAPT Cloud connected devices
SmartPID — Temperature controller
Brewbrain Float Hydrometer — Float digital hydrometer
BrewPiLess — Fermentation temperature controller
MyBrewbot — Brewing automation device
Custom Endpoint — Send batch data to a custom URL
Brewtools — Brewtools brewing equipment integration (Beta). When enabled, you can share recipes directly to your Brewtools machine from the batch page. Only shown in beta/dev environments or if previously enabled. See Brewtools for instructions.
GF Bluetooth Control — Grainfather Bluetooth control (Beta, web only). When enabled, you can send the recipe to your Grainfather controller in the Brewing tab during a batch. This integration requires a Chromium-based browser. Use at your own risk — it is under beta testing. See Grainfather for instructions.
Plaato Airlock — Plaato Airlock fermentation monitoring (legacy). When enabled, attach the Plaato Airlock in your batch after you start logging via the Devices button in the Fermentation tab. Provides a logging URL and webhook configuration. See Plaato for details.
DIY Floaty Hydrometer — DIY Floaty wireless hydrometer (legacy). When enabled, copy the provided ID into your Floaty Hydrometer settings and attach it in your batch after you start logging via the Devices button in the Fermentation tab. Provides webhook configuration. Only shown if previously enabled. See DIY Floaty Hydrometer for details.
Legacy power-up notes: Plaato Airlock and Plaato Keg are still available in Settings, but Plaato hardware is discontinued and support depends on third-party Plaato services. DIY Floaty Hydrometer is only shown if it was previously enabled (removed from new device setup). See Plaato and DIY Floaty Hydrometer.
Integration
Generate API-Key — Create API keys for programmatic access to your data (see API)
Connected Apps — View and manage third-party app connections (see Connected Apps)
Data
Submit Data Update Request — Request updates to ingredient or equipment data
Export User Data to JSON — Export all your data for local backup (web only)
Import User Data from JSON — Import previously exported data (web only)
View and Restore Historic Data — Browse and restore previous versions of your data
For step-by-step backup, restore, and offline recovery guidance, see Data Safety.
Application
Reload Application — Force-refresh to get the latest version
Clear Offline Storage — Remove locally cached data
Offline Support — Enable persistent local database for offline use (deactivated by default as it can lower performance on some older devices). When active, all your data is cached persistently in a local database for offline use and synchronized when you get back online. When deactivated, your data is cached in local memory, but is not persistent across application reboots.
Alternative Connection Mode — Use an alternative connection method if you experience connectivity issues
Danger Zone
Experimental Features — Access experimental settings:
Conversion Efficiency — Use conversion efficiency in calculations
Use Fermenter Volume When Calculating Potential From Sugar and Extract — Use fermenter volume directly when calculating yield from sugar and dry/liquid extract for compatibility with other brewing software
Reset Default Data — Reset included ingredient and equipment data to defaults
Delete Account — Permanently delete your Brewfather account and all data
Related docs
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