CoffMeter W1 - Water Activity Meter for Coffee

CoffMeter W1 – Protect your coffee from mold and flavor loss

Did you know your beans can be at risk even if they feel dry? The CoffMeter W1 is a professional lab tool in pocket size that measures coffee’s water activity (aw). It is the most important measurement for anyone handling green beans or roasting coffee, as it reveals exactly how stable the coffee is over time.

Water activity is not the same as moisture content. While moisture content tells you how much water is in the bean, water activity tells you how much of that water is "free" and can lead to mold, mycotoxins, or rapid breakdown of sugars and acids. With the W1, you get lab results in about 2 minutes – whether you’re in the warehouse, the roastery, or out in the field.

"If you want to sleep peacefully knowing that your expensive microlots don’t lose their fruity notes or develop mold, the W1 is your best insurance."

Why the CoffMeter W1 is indispensable:

• Precision at a good price: With an accuracy of ±0.02 aw and a resolution of 0.001 aw, you get professional insight without having to invest in large laboratory equipment.
• Lightning-fast workflow: Results in about 2 minutes. This is significantly faster than traditional moisture-based meters and allows you to check many batches quickly.
• Delicious and functional design: The magnetic, floating sample tray not only makes it easy to insert the beans – it also feels like quality every time you use it.
• Smart environmental compensation: Built-in sensors adjust for temperature, humidity, and pressure. This means stable measurements whether you measure in a cold roastery or a tropical climate.
• CoffeeOS integration: Sync your data via Bluetooth to the DiFluid app. Track quality trends over time and save your measurements directly on your phone.

Understand the critical limits (aw):

• Below 0.60 aw: Your coffee is safe. No risk of mold growth – beans stay fresh for years.
• 0.60 – 0.70 aw: Caution! You are in the risk zone where shelf life is significantly shortened.
• Above 0.70 aw: High risk of mold and toxic mycotoxins. Coffee should not be stored for long.

Technical Specifications

Frequently Asked Questions (FAQ)

Is the W1 difficult to calibrate? No, it’s super simple. It comes with a vial to make a saturated salt solution. Once the solution is ready, the calibration itself takes only 5 minutes with a single button press.

What is the difference between the W1 and the more expensive Omix model? Omix is the "big brother" and uses chilled-mirror technology, which provides results in just 30 seconds and measures multiple parameters (moisture, density, color). W1 is a dedicated water activity meter at a more accessible price, focusing on giving you exactly the data you need to ensure shelf life.

Does it only work for coffee? No, you can also use it to measure water activity in rice, wheat, corn, and other dry goods, making it incredibly versatile.

Buy from BloomVik

• 30-day full return policy: We stand behind our equipment, but you should have peace of mind.
• Package contents: W1 main unit, sample container, magnetic tray, calibration kit, and user manual.
• Delivery time: Currently 7-day delivery time.
• Danish support: We help you get started mastering your water measurements.

Protect your investment and your taste experience. Order your CoffMeter W1 today and gain full control over the beans' shelf life.