Roastline connects to your roaster, reads the curve live, and tells you what to do next — then predicts how the cup will taste before you grind a single bean. Logging is solved. Decisions aren't.
The curve only ever told you where you'd been. Roastline projects where BT and RoR are heading and tracks your target development — so you nudge the gas before the stall, not after.
Before you've pulled a single sample, Roastline reads the profile and predicts how it'll cup — acidity, body, sweetness, and the score — and flags baked, underdeveloped or scorched while you can still change it.
Lock in a profile and let Roastline run it hands-free — same drop, same development, batch after batch. A copilot, not a replacement: take the wheel back any moment, or use it to train your juniors.
Plug into your roaster in minutes — Aillio Bullet, Kaleido, Ikawa & more.
See where the curve is heading and act early, every batch.
Know the score and catch defects before you taste.
Lock in a recipe and let it run, hands-free.
Keep the machine you have and the logging you trust. Roastline layers the intelligence on — it doesn't take your setup away.
Aillio Bullet, Kaleido, Ikawa and more — an extensible device layer means a new machine is a driver, not a rewrite. Never locked to one drum.
The AI can run on-prem — works offline through a power flicker, and your roast data never leaves the building. Cloud's there if you want it.
Not here to replace your records. Roastline is the AI reading them in real time, on top of what you already do.
Roastline tunes its predictions to the cups you actually score. Quality-weighted, so your best roasts teach it the most — and every batch you cup makes the next one sharper.
Run the batch with real-time AI guidance and your target profile.
Tell Roastline how it actually tasted — acidity, sweetness, SCA.
Predictions sharpen toward your palate — weighted by your best cups.
After every batch, a plain-language walk-through of what happened — and exactly what to adjust next time. Not "your RoR was 7.2." Real moves: when to open the gas, by how much, to land the cup you're after.
A small group of micro-roasters and cafés are shaping Roastline on real drums. Onboarding now.
“I’ve been roasting for eleven years and I still caught myself second-guessing drop timing on naturals. Roastline just tells me. RoR’s climbing, Maillard’s almost done, drop in 40 seconds — and the cup backs it up every time.”
“We roast with two different people across the week. Before Roastline, the Wednesday batch always tasted a little different from Monday’s. Now the curves match, the scores match, and I stopped wasting a kilo of green every week chasing consistency.”
Founding-roaster rate locked for life · See full pricing
Drop into a live roast scenario in your browser — no machine needed. Roastline scores your decisions against the AI and shows you exactly where your instincts are sharp and where they're costing you cups.
Free account required · runs in any browser · no download
No credit card · connect your machine in minutes