DiFluid CoffMeter W1 - Precise and Portable Water Activity Meter for Coffee

CoffMeter W1 - Coffee Water Activity Meter

Worried about mold, mycotoxins, or loss of freshness in your coffee beans? Discover CoffMeter W1 from DiFluid – a compact, professional, and portable analyzer for precise measurement of water activity (aw) in coffee. With high-precision moisture sensors and advanced environmental compensation, the W1 delivers laboratory-quality results in about 2 minutes – no lab required. Its pocket-sized design makes it perfect for use in the field, warehouse, roastery, or at home, while Bluetooth integration with CoffeeOS (coming soon) gives you tools to track and optimize coffee quality. Whether you are a farmer, trader, professional roaster, or coffee enthusiast, the W1 helps you protect both safety and flavor in every bag and cup.

Why choose CoffMeter W1?

✔ Fast and accurate measurement: ±0.02 aw accuracy and 0.001 aw resolution – results in about 2 minutes.

✔ Laboratory quality without a lab: High-precision moisture sensors and built-in environmental compensation (temperature, humidity, and pressure) ensure stable readings in all climates and altitudes.

✔ Easy calibration: One-touch calibration with reusable saturated salt solution – performed quickly at home.

✔ Unique design: Magnetic, floating sample tray makes loading and unloading beans both easy and satisfying.

✔ Compact and portable: Only 750 grams, fits in your pocket and goes everywhere with you.

✔ Long battery life: Lasts for many measurements on a single charge.

✔ Firmware updates: Seamless updates via WiFi or Bluetooth through CoffeeOS.

✔ Versatile: Supports green coffee, rice, wheat, corn, and more sample types – only 6–8 grams of sample needed.

CoffeeOS integration

Synchronize results via Bluetooth and log aw data directly in the app (full integration coming early next year). Track quality trends, analyze development over time, and centralize the entire team’s quality control. CoffeeOS is free for home users and includes tools like Quality Analyzer and Notes Manager – with lifetime updates and cloud connection.

Package contents

• Main unit
• Sample container
• Magnetic, liquid sample tray
• Container for calibration solution (vial)
• User manual

Why water activity measurements matter

Water activity (aw) is the measurement that truly predicts shelf life and flavor – far better than moisture percentage. Water activity controls both safety and freshness:

• Below 0.60 aw: No risk of mold – beans keep for years.
• 0.60–0.70 aw: Risk zone.
• Above 0.70 aw: High risk of mycotoxins. Too low aw (~0.30) breaks down the fine acids and sugars that give coffee life and complexity. Moisture percentage never tells this story. With W1 you get the full picture (0.05–0.99 aw) in minutes – anywhere – and can protect both bag and cup throughout the entire process from green coffee to roasting and storage.

Take control of your coffee quality

With CoffMeter W1 you can quickly assess water activity and make decisions based on hard data. Perfect for:

• Farmers and traders — Quick quality control in the field or warehouse to avoid losses and maximize value.
• Professional roasters — Ensure consistent shelf life and freshness batch after batch.
• Cafés and enthusiasts — Easy assessment of beans from different suppliers for optimal storage and brewing.

Convince with precise data: Traditional methods or moisture meters don’t give the full picture. With W1’s laboratory accuracy and portable design, you can handle your coffee with confidence – order today and protect flavor and safety on a whole new level!

Frequently Asked Questions

How to calibrate?

1. Prepare saturated salt solution at least 1 hour in advance using the included vial.
2. Pour solution into the sample container so the bottom is covered (including undissolved salt).
3. Place the container in the magnetic, liquid sample tray.
4. Attach the main unit and turn it on.
5. Select “Calibrate.” The process takes about 5 minutes.
6. Remove the container, clean it, and store the solution for next time.

Is CoffeeOS free?

Yes – for private users, CoffeeOS is always free.

Does it work for other sample types?

Yes, including rice, wheat, corn, and more.

What distinguishes W1 from Omix and other water activity meters?

Both W1 and Omix use advanced algorithms for fast, precise measurements. Omix employs the leading chilled-mirror dew-point method and provides results in about 30 seconds plus many more features (moisture, density, color, etc.). W1 uses moisture-based detection, which is a bit slower (about 2 minutes) but still significantly faster than traditional alternatives – and focuses purely on water activity at a more accessible price.

CoffMeter is a sub-brand of DiFluid, offering simplified yet powerful and professional coffee analysis tools.