Heirloom Quality
Apieceofartthathappenstobeacoffeescale
Tempered glass with visible PCB. Machined brass encoder. Walnut accents. Zero visible plastic. Finally, a scale worthy of your setup.
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Why Bloom
Your setup deserves this
Heirloom materials. Open source firmware. And when something eventually wears out, you fix it—not replace it.
Museum-Quality Materials
AR-coated tempered glass reveals a museum-quality PCB beneath. Machined brass rotary encoder. Walnut accent ring. Zero visible plastic.
Built for Decades
User-serviceable design with published schematics. Replace the battery yourself in 2035. This isn't planned obsolescence.
Software That Evolves
Bloom's capabilities grow with you. Open source firmware. Regular updates. Community-driven features that respond to how you actually brew.
Hand-finished in Portland
Signed by the person who built it
Every Bloom is assembled, calibrated, and signed by hand. You'll know exactly who built your scale.
Artisan Assembly
Each glass top is inspected. Each brass encoder is tested. Each unit is signed and numbered before it ships.
Heirloom Materials
Tempered glass. Machined brass. Hand-oiled walnut. Brushed stainless steel. Cork base. Materials that age beautifully.
No Compromises
We could use plastic and hit $150. Instead, we chose glass, brass, and walnut—materials that age beautifully and reward daily use.
Handmade in the USA
Heirloom Quality
A piece of art
Crafted for those who appreciate when form and function become indistinguishable. Built to the standard your setup deserves.
Tempered Glass Top
AR-coated tempered glass reveals the PCB beneath—matte black solder mask with gold traces. The electronics aren't hidden; they're the centerpiece.
Machined Brass Encoder
Solid brass rotary dial with satisfying weight. Develops a patina over years of use. Magnetically removable for cleaning.
Visible PCB as Art
Matte black solder mask. Gold ENIG traces. Symmetric component layout. The circuit board isn't hidden—it's a design feature.
Every Bloom includes a repair guide. We expect you'll still be using it in ten years.
Built for decades
10+ years. 10,000 brews.
Bloom is designed for daily use, year after year. When something wears out, replace it—don't throw the whole thing away.
IPX5 Water Resistant
Rinse it under the tap. Coffee spills, cleaning splashes—Bloom handles them all.
Drop Tested
Survives a 0.5m drop onto hardwood. Because accidents happen.
User Serviceable
Standard screws, replaceable parts, published schematics. Fix it yourself or send it in.
No lag, no drift
Rock-steady readings
Fast response time. No annoying stabilization delays. The weight you see is the weight you have.
- 80Hz sample rate—faster than you can pour
- Smart filtering that's fast, not laggy
- Reliable auto-tare that just works
- Temperature-compensated load cell for consistent accuracy
Faster than you can pour
No stabilization delays
Temperature compensated
Consistent accuracy regardless of conditions
See it in action
One bean, one recipe
Pick your coffee. Bloom loads your saved recipe. Follow the display. Done.
- Save recipes by bean origin or roaster
- Instantly recall parameters when you switch beans
- On-screen guidance—no phone required
- Refine recipes over time as you dial in
Your beans remember
Ethiopian Yirgacheffe? 18g at 1:16. Colombian Huila? 20g at 1:15. Each bean gets its own recipe. Switch bags, Bloom switches settings.
No phone. No fuss.
From bag to cup
Pick your bean. Pour your coffee. That's it.
Pick your bean
Select your coffee from your saved list. Bloom loads the recipe you dialed in for that specific bean.
Follow the screen
The display tells you exactly when and how much to pour. No phone, no app, no distractions.
Repeat tomorrow
Same bean? Same great cup. New bean? Create a new recipe in minutes.
Perfect grind size
Your drawdown time indicates optimal extraction.
Dial in your grind
Grind feedback that teaches
Not sure if your grind is right? Bloom tracks your brew time and flow rate to help you dial in the perfect grind size for any coffee.
- Drawdown time analysis for pour-overs
- Flow rate tracking during extraction
- Smart suggestions: go finer or coarser
- Learn what good extraction looks like
Over time, you'll develop an intuition for how your grinder settings translate to brew quality.
Companion App
Control from your pocket
The Bloom app lets you monitor brews, manage recipes, and track your progress over time.
Recipes
V60 Classic
20g coffee • 320g water
Chemex
30g coffee • 480g water
AeroPress
15g coffee • 200g water
My Morning Brew
22g coffee • 350g water
V60 Classic
Step 3 of 9
First Pour
Pour in steady, concentric circles
Grind Analysis
V60 Classic Recipe
Perfect grind!
Your brew time and flow rate indicate an ideal extraction.
Live Monitoring
Watch your brew in real-time from your phone
Recipe Management
Create, edit, and sync your custom recipes
Brew History
Track your brews and improve over time
Scale detail view
No phone required
Everything on the device
Full brewing guidance built in. Your phone stays in your pocket.
- High-contrast display shows every step
- Intuitive dial for one-handed control
- Unlimited recipe storage on device
- Real-time pour rate feedback
- 0.1g precision load cell
- Premium aluminum construction
Open Source
Yours to hack
Bloom is fully open source. The complete hardware design and firmware are available for you to study, modify, and improve.
Want to add a feature? Tweak the brewing logic? Integrate with your smart home? Go for it. Reflash the firmware via USB anytime—no special tools required.
- Complete schematic and PCB design files
- Full firmware source code
- Reflash via USB with Arduino IDE
- Active community and documentation
// Your brewing logic, your way
void Brewer::pour() {
if (weight >= targetWeight) {
if (currentStep.waitTime > 0) {
setState(WAITING);
countdown = currentStep.waitTime;
} else {
advanceStep();
}
}
// Add your own features here!
}Available on GitHub
MIT License
Launching Q4 2026
Get Your Bloom Scale
Choose your finish and start brewing better coffee today.
Questions answered
Frequently Asked Questions
AR-coated tempered glass. Machined brass encoder. Hand-oiled walnut accents. Brushed stainless steel platform. Cork base. Zero plastic. Hand-assembled and signed in Portland. These materials cost more. They also last longer, feel better, and look beautiful on your counter for years.
Launching Q4 2026
The last scale you'll ever buy
Hand-finished in Portland. Glass, brass, and walnut. $375. Join the waitlist for priority access.
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