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The Best Food-Safe Finish May Be None At All - Fine Woodworking Article
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this post was submitted on 05 Apr 2025
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I'm not so much concerned as interested, in this person's proposed model, what happens to this accumulated detritus. Maybe it's just that it's negligible. But it must accumulate
The illustrations seem to indicate that stains and dead microbes accumulate in the middle of the wood, deep below the surface. It would be interesting to slice an old wood cutting board in half and see the accumulated stains!
That penetration is super exaggerated. Ever cut through a stained (i.e. pigment-stained) board? Board painted with a water-based paint? Those paint pigment particles are same scale as microbes, so you should expect them to penetrate to similar depth. Surface cleaning and routine abrasion get rid of most of it. Go over the surface with a scraper - take off 20-50 microns - and you're pretty much down to virgin wood.
You're on to.something here. And you're right: that illustration probably distorted my understanding of the process
Nobody says You can't wash the thing occasionally