Homebrew software,
from grain to beer.

Build beer recipes with accurate IBU, ABV, color and water chemistry, log fermentation straight from your iSpindel, Tilt or RAPT Pill, and always know what's in which keg. Built by a homebrewer, for homebrewers.

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brewforge.sh/brews/helles-47

4A Munich Helles

Helles #47

Fermenting · day 8 iSpindel · 12 min ago

1.048

Current

1.011

ABV so far

4.9%

Attenuation

78%

Gravity Temperature Projected11.4 °C

Projected FG

1.010

in ~3 days

Spunding

Valve closed

at 1.014 for 2.5 vol CO₂

brewing right now

164

brewers

554+

improvements shipped in 2026

roadmap items shipped

Works with the gear you already have

iSpindel Tilt RAPT Pill GravityMon Custom webhook TRMNL Hydrom Niimbot Brewfather import BeerXML

One place for the whole batch

Plan the brewery, not just the beer.

From the first recipe idea to the last pint out of the keg — recipe math, brew day, fermentation, stock and serving in one app.

Design

Recipes that predict, not guess.

BrewForge predicts final gravity from your actual mash schedule, so changing the rest temperature changes the beer on screen before it changes in the fermenter.

FG from step temperatures, rest times and crystal/roast malts
Tinseth IBU incl. first wort, mash hops and whirlpool temperature curves
BJCP 2021 style ranges while you edit
Versions, branches and scaling to your equipment

Learn more

Saccharification rest65 °C · 60 min

62 °C · more fermentable70 °C · fuller body

1.048

Predicted FG

1.010

ABV

5.0%

4A Munich Helles · BJCP 2021

1.048

1.010

IBU

SRM

3.6

Whirlpool

Whirlpool IBUs from a real temperature curve.

A hopstand never stays at one temperature. Describe how your kettle actually cools and BrewForge integrates hop isomerisation minute by minute along that curve — instead of guessing with a single number.

Reusable hopstand temperature-curve profiles
Tinseth with temperature-dependent utilisation, step by step
See how chilling before the whirlpool changes your bitterness

Learn more

Wort temperature IBU from this additionKettle cools slowly from flameout

At 40 min

78 °C

Curve result

56.1 IBU

Flat 80 °C guess

24.6 IBU

100 g Citra (12% AA) at flameout, 23 L, Tinseth with temperature-dependent isomerisation.

Water

Hit your water profile and mash pH.

Start from your tap water or RO, pick a target, and let the solver suggest salt additions. The mash pH estimate tells you how much acid you need.

10 brewing salts, lactic, phosphoric and more
Mash and sparge additions, water blending
Estimated mash pH from your grist

Learn more

SO₄

HCO₃

Gypsum 2.1 gCaCl₂ 2.6 gLactic acid 80% 2.4 ml

Est. mash pH 5.38 target profile

Brew day

Plan it, brew it, compare it.

Print a brew-day sheet with your water, mash steps and additions, record what you measured, and see planned vs. actual efficiency for the next batch.

Brew day, recipe and fermentation PDFs
Measured values next to the plan
Ingredients deducted from inventory

Learn more

Brew day sheet · Helles #47

Water, mash steps and additions, with blanks to fill in by hand

Brew dayPlannedMeasured

Strike water62.0 °C62.4 °C

Mash pH5.385.40

Pre-boil gravity1.0421.043

Post-boil volume24.5 L24.1 L

OG1.0481.049

Mash efficiency

82% → 84%

Brewhouse efficiency

72% → 74%

Ferment

Your hydrometer reports in.

Paste one URL into your iSpindel, TiltBridge, RAPT cloud or GravityMon and readings land on your brew. BrewForge projects when you'll reach final gravity and when to close the spunding valve.

Gravity, temperature, ABV and attenuation as readings arrive
Projected FG date and spunding forecast
Fermentation profiles put dry hops and cold crash on your calendar

Learn more

POST /api/devices/webhook200 OK

{
  "name": "iSpindel-FV1",
  "angle": 41.2,
  "temperature": 10.1,
  "temp_units": "C",
  "battery": 3.98,
  "gravity": 1.017,
  "interval": 900
}

iSpindel-FV1 → logged to Helles #47

Plan Pro

Know what you're short on before brew day.

Plan your next brews and BrewForge projects your stock across all of them. Shortages show up early, and turn into an order list in one click.

Projected stock across planned brews
Order lists with partial deliveries
Shipping costs spread across what you received

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Planned brewsHelles #47 Pils #48

Pilsner Malt

need 8.6 kg · have 6.0 kg

−2.6 kg

Saaz

need 120 g · have 100 g

−20 g

W-34/70

need 3 pkt · have 3 pkt

Gypsum

need 4 g · have 180 g

Order list created · 2 items

Cellar Pro

Every fermenter and keg on one timeline.

See which vessel is busy until when, slot the next brew into the fermenter that frees up, and keep track of keg and bottle stock.

Fermenter and keg scheduling
Keg & bottle stock, keg loans, audit log
Calendar and ICS feed on every plan

Learn more

FV1 · 30 L

Helles #47 · Primary

D-rest

FV2 · 30 L

Hefeweizen #46

Pils #48 · Planned

Keg A · 19 L

Märzen #44 · Lagering

Keg B · 19 L

Pale Ale #45 · Serving

Oct 22Nov 5Nov 19

Thu 24Brew day · Pils #48

Sat 26Dry hop · Pale Ale #49

Mon 28Cold crash · Helles #47

Wed 30Keg · Hefeweizen #46

webcal://brewforge.sh/api/calendar/feed.ics?…Subscribe

Serve Pro

From fermenter to tap list.

Publish what's pouring as a web menu, a printable PDF or a TV screen above the bar that updates itself when you change a tap.

Web menu and menu PDF in several designs
Auto-refreshing TV screen: Taproom, Chalkboard, Modern and more
"Add a beer" links for friends who bring their own
Niimbot label printing from the browser

Learn more

On tapHome bar · 4 taps

Pale Ale #45

American Pale Ale · 5.4%

Citra, Mosaic

Märzen #44

Märzen · 5.8%

Bready, toasty

Hefeweizen #43

Weissbier · 5.1%

Banana & clove

Helles #42

Munich Helles · 4.9%

Soft, bready

TaproomChalkboardModern

Helles #47

Batch 47 · 4A Munich Helles

11.4°C

Temp

1.011

Gravity

Gravity + temperature1.048 → 1.010

BrewForgeFermentation

TRMNL e-ink display Pro

Your brewery, on the wall.

BrewForge has a plugin for TRMNL, the e-ink dashboard. Put your current fermentation next to the fermenter or your beer stock next to the kegerator, readable at a glance without unlocking your phone.

Fermentation screen: gravity and temperature trend towards your target FG
Beer stock screen: what's left in kegs and bottles
Full, half and quadrant layouts to share the display with other plugins
Install from TRMNL with one click — no API key to copy

Set up TRMNL

Included on every plan

11 calculators for brew day.

The quick math you reach for between recipes — using the same formulas as the recipe designer.

ABV & attenuation

Refractometer

Hydrometer correction

Yeast pitch & starter

Carbonation & priming

Spunding

Strike water

Step & decoction rests

Dilution & boil-off

Unit converter

Hop freshness

Switching from Brewfather?

Bring your history. Don't pay twice.

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Don't pay twice

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Upload your Brewfather receipt when you pick a plan. The time you have left is turned into a discount on your first BrewForge year.

Months left on Brewfather6

50%

off your first year

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Basic: $19.99 $9.99 first year

Rounded up to the next 10%, up to 100%. For Brewfather subscriptions bought after March 31, 2025. Receipts are checked automatically; unclear ones are reviewed by hand.

Import in minutes

Upload Brewfather's “Export All” file and choose what to bring over: batches, recipes, equipment, mash, fermentation and water profiles, and inventory. Ingredients are matched for you.

Upload your Brewfather export

brewfather_export.json · 12.4 MB

Pick batches & profiles

48 batches · 6 profiles · inventory

Match ingredients

Pilsner Malt → Weyermann® Pilsner Malt

Import

Batches, recipes, profiles and stock are in

Compare with Brewfather

Exports

BeerXML, JSON and PDF per brew, plus a full account export.

ICS feed

Brew days, dry hops and reminders in your phone's calendar.

REST API

Brews, readings, notes, inventory and profiles. Pro.

Docs

Setup guides, migration guide and API reference.

Your brewing data stays yours.

Pricing

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Recipe designer & water chemistry
All 11 calculators
Hydrometer logging
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FAQ

Questions brewers ask

Is there a free plan?

Yes. The Free plan covers up to 20 brews with the recipe designer, water chemistry, all 11 calculators, hydrometer logging, inventory and imports. No credit card needed. Basic ($19.99/year) removes the brew limit; Pro ($29.99/year) adds inventory planning, cellar, taplist, TRMNL, labels and API access.

Which hydrometers and sensors work with BrewForge?

iSpindel, Hydrom, Tilt (through TiltBridge or TiltPi), RAPT Pill (via the RAPT cloud webhook) and GravityMon. Any other device that can send HTTP can be connected with a Custom Stream, where you map its fields to gravity, temperature, pressure or keg weight.

Can I import my data from Brewfather?

Yes. Upload Brewfather's "Export All" JSON file and pick what to bring over: batches, recipes, equipment, mash, fermentation and water profiles, and inventory. Ingredients are matched to your inventory and the BrewForge ingredient database. BeerXML and MaischeMalzundMehr files can be imported too.

Is there a mobile app?

BrewForge is a web app that works in any modern browser and can be installed to your phone's home screen as a PWA. There are no native iOS or Android apps.

Does it support metric, imperial and Plato?

Yes. Volume (L or gal), weight (kg or lb), temperature (°C or °F), gravity (SG or °Plato), colour (SRM or EBC) and pressure (psi or bar) can each be set independently.

Can I get my data out again?

Every brew can be exported as BeerXML, JSON and PDF, and you can download a full account export at any time. Pro includes a documented REST API.

Your next batch starts here.

Free for up to 20 brews. No credit card.

Create free account

Homebrew software, from grain to beer.

Plan the brewery, not just the beer.

Recipes that predict, not guess.

Whirlpool IBUs from a real temperature curve.

Hit your water profile and mash pH.

Plan it, brew it, compare it.

Your hydrometer reports in.

Know what you're short on before brew day.

Every fermenter and keg on one timeline.

From fermenter to tap list.

Your brewery, on the wall.

11 calculators for brew day.

Bring your history. Don't pay twice.

Your remaining Brewfather months become a discount.

Fair, yearly pricing.

Free

Basic

Pro

Helpful feedback gets rewarded.

Questions brewers ask

Your next batch starts here.

Homebrew software,
from grain to beer.