What Greentest ECO 6 shows—and how to use the result
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A useful device starts with a clear question. Are you exploring a supported fresh ingredient, looking at a water reading, or checking background radiation? Greentest ECO 6 brings these functions into one handheld device, but each mode answers a different question.
Start with the right mode
In food mode, the device responds to salts in the sample and presents a nitrate estimate for the food selected. Treat that number as indicative information about the sample. It is not a complete assessment of the food’s safety.
Water mode estimates total dissolved solids, or TDS. A TDS result does not establish whether water is safe to drink. The radiation function has its own instructions and should not be treated as an all-purpose safety check.
A simple measurement routine
- Select the matching fresh food before inserting the probes.
- Follow the supplied manual’s placement instructions and hold the device still.
- Record the food and measurement conditions if you want to compare results later.
Use the exact instructions supplied with your unit. A prepared salad, smoothie or cooked meal is not interchangeable with an individual fresh food listed in the menu.
Read the number in context
A low reading does not mean that every possible hazard has been checked. ECO 6 is not a test for pesticides, heavy metals or harmful microbes, and it does not replace laboratory analysis. Avoid using its display to calculate a guaranteed safe portion.
Before choosing a device, watch the demonstration, check the supported foods and confirm the language version. Understanding its scope helps you decide whether it fits your routine.
Explore Greentest ECO 6 and its features
Sources: ECO 6 manufacturer’s manual, hosted by ACTIN; WHO: total dissolved solids. Reviewed 10 September 2026.