An electrifying test to find a good coffee
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A coffee’s strength can be assessed from the electrical current generated when a voltage is applied to the liquid. Credit: Getty
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A quick electrical test is as good as a person’s taste buds at determining the strength and roast of a cup of coffee1.
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doi: https://doi.org/10.1038/d41586-026-01289-y
References
- Bumbaugh, R. E. et al. Nature Commun. 17, 3618 (2026).
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Chemistry
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