Roast Colour Meters & Analysis Equipment

Roast Colour Meters & Analysis Equipment

Coffee roast colour meters turn roast level from a judgement call into a number. Measure Agtron scores, track consistency batch to batch, and reproduce your best roasts - from the CoffMeter A1's straightforward scoring to the Omni's full colour-distribution analysis and the all-in-one Omix Plus.

  • DiFluid CoffMeter A1 - Coffee Roast Colour Meter

    DiFluid CoffMeter A1 - Coffee Roast Colour Meter

    DiFluid CoffMeter A1 - Coffee Roast Colour Meter

    Precision colour measurement for consistent roasts, every time.

    £305.95
    £305.95
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  • DiFluid Omni — Roast Colour Meter & Particle Size Analyser

    DiFluid Omni — Roast Colour Meter & Particle Size Analyser

    DiFluid Omni — Roast Colour Meter & Particle Size Analyser

    Your roast isn't one colour. Your grind isn't one size.

    £695.95
    £695.95
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  • DiFluid Omix Plus - All-in-One Coffee Analyser

    DiFluid Omix Plus - All-in-One Coffee Analyser

    DiFluid Omix Plus - All-in-One Coffee Analyser

    Coffee Moisture, Water Activity, Density, Structure, and Colour Meter

    £2,000
    £2,000
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DiFluid

The trusted name in coffee analysis equipment. Our tools combine industry-leading accuracy with intuitive design, empowering users at every level to roast, grade, and brew with confidence.

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Your guide to Roast Colour Meters & Analysis Equipment

  • Why measure roast colour instead of judging by eye?

    Your eyes adapt, lighting changes, and memory is unreliable - the same roast can look different on a grey morning than under warehouse lights. A roast colour meter gives you a repeatable Agtron score, so you can compare batches objectively, spot drift in your profiles, and reproduce a roast you nailed three months ago.

  • What does an Agtron score actually tell you?

    Agtron is the industry-standard scale for roast degree, typically expressed 0–100 — higher numbers mean lighter roasts. Most specialty roasts land between 45 and 75, and some devices like the Omni measure across an extended 0–150 range.

  • Which meter is right for my setup?

    The CoffMeter A1 gives you reliable Agtron scoring at the most accessible price - ideal if you want to track roast level batch to batch. The Omni steps up to ±0.1 precision and scans a full colour distribution across the sample, adding uniformity metrics and particle size analysis. The Omix Plus folds roast colour into a complete green coffee lab - moisture, water activity, and density in one device.

Other options to explore

  • Moisture Meters

    Moisture Meters

    Know how a coffee will behave before it hits the drum. Moisture and density readings in seconds.

  • Water Activity Meters

    Water Activity Meters

    Moisture says how much water. Water activity says whether it's a problem. Check every lot you store.

  • Refractometers

    Refractometers

    You've measured the green and the roast — refractometers measure the cup. Dial in extraction with real numbers.

Your questions, answered

What's the difference between the CoffMeter A1, Omni, and Omix Plus?

The A1 measures average roast colour to ±0.5 Agtron - the essential tool for consistency. The Omni measures to ±0.1, shows the full colour distribution rather than one average, and adds particle size analysis. The Omix Plus combines roast colour with green coffee analysis (moisture, water activity, density) in a single device.

Do I measure whole beans or ground coffee?

Ideally both. Ground coffee gives the more accurate roast degree reading because it exposes the bean's interior. Comparing whole bean against ground shows you how evenly the roast penetrated - a large gap suggests underdevelopment at the core.

Is a roast colour meter worth it for home roasting?

If you're trying to be consistent, yes. It's the difference between "that looks about right" and knowing you're within a point of last week's batch. Most home roasters find it changes how quickly they improve, because every adjustment gets an objective result.

How do Agtron numbers relate to light, medium, and dark roast?

Roughly: 75+ reads as light, 55–75 as medium, and below 55 heads into dark territory - though exact boundaries vary by who's defining them. The value of measuring isn't the label, it's the precision: "medium" covers a 20-point range, and your customers can taste the difference across it.

Do these meters need calibration?

Yes, and it's straightforward - each device includes a calibration plate and the process is done at home in under a minute, following on-screen instructions. No lab or service visits required.