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Etching Permanent Volume Markings on a Kettle

Etching Permanent Volume Markings on a Kettle

MAKE - Matt Bates

It's easy and safe — use a 9V battery, vinegar, and salt to permanently etch markings on metal. As a homebrewer I often need to measure my kettle volumes at various stages during the brew day — to figure out my brewing efficiency, or monitor evaporation rates, or compare boil volumes to what my …

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