Coffee DTR Timer vs CoffeeRoastMate

This simple coffee roast timer is used with your roaster of choice. Add your roaster name, bean name and green weight with units on the setup screen. On the timer screen hit start when you start your roast. Tap the Yellowing button when the beans start to turn yellow and the drying phase time is saved. Tap First Crack at the sound of first crack and the Maillard phase time is saved and live DTR is enabled allowing to dial in development time! Tap Drop/End and the development time along with DTR, maillard time, time to first crack and total roast time are shown to allow you to log your roast information. Add roasted weight and weight loss is calculated. Save roast will add to roast history and display the roast summary screen. On the history screen the user can favorite or delete roasts from the history.

Master consistency in every batch — no matter the weather. CoffeeRoastMate is not just a timer; it’s a precision tool for anyone who cares about the science behind the bean — from home enthusiasts to small-batch professionals. Ambient temperature and humidity are invisible variables that can disrupt even a perfect roast profile. Cold air extends the Drying phase; humidity changes heat transfer. CoffeeRoastMate analyzes your local weather conditions instantly and helps you adjust your plan before you even drop the green beans. Why CoffeeRoastMate? - Weather Intelligence Automatically fetches localized temperature and humidity to suggest precise adjustments for your Drying, Maillard, and Development phases. - Predictable Results Stop guessing. Compensate for environmental variables and hit your target roast levels consistently. - Profile-Aware Calculations Select your target roast profile — light, medium, dark, or custom ratios — and the app adapts timing recommendations accordingly. - Bean-Specific Adjustments Choose your coffee bean type to factor density and processing characteristics into the suggested plan. - Privacy First All calculations run locally on your device. No accounts, no tracking, no cloud uploads. Key Features - Real-time Roast Difficulty Index based on weather - Dynamic phase timer with large, glanceable controls - Visual phase breakdown (Drying / Maillard / Development) - Optional, secure offline roast logging - Clean, distraction-free interface for active roasting - Works offline after the initial weather update Zero Paywalls. 100% Indie. This app is completely free — no subscriptions, no ads, no locked features. If it helps you roast better, you can optionally support future development through the Tip Jar — purely optional. Happy roasting!