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c/carpenters•lee59lee59•1d ago

Warning: That Portuguese flea market trick saved my mismatched trim project

On a recent trip to Porto, I saw local craftsmen using a paste of coffee grounds and wax to darken and protect unfinished wood. It's a cheap, non-toxic way to achieve a consistent patina on repairs or new additions. Has anyone encountered similar old-world finishing techniques in their travels?
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4 Comments
oscarc12
oscarc121d ago
Hold on, they're using coffee grounds? That sounds like something from a grandmother's kitchen hack, not a professional finishing technique. I mean, coffee stains everything, but to actually darken wood permanently, that's wild. I once tried using tea bags to age paper for a project, and it worked okay, but wood is a whole different beast. Makes me wonder what other everyday items are hiding in plain sight as craft secrets. Porto's craftsmen must have some serious knowledge passed down through generations.
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craig.sarah
Many traditional methods get dismissed as kitchen hacks until you see the results firsthand. In contracting, we've used everything from vinegar to natural dyes for specific finishes, and they often work better than store-bought stuff. There's a real bias towards commercial products that erodes valuable passed-down techniques. Coffee grounds are a perfect example of that overlooked practical knowledge lol.
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the_seth
the_seth1d ago
Have you encountered other food-based finishes like tea or wine in your travels?
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william_garcia
Japanese shou sugi ban uses fire and oil for preservation.
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