wood boards are surrounded by misconceptions and misunderstanding. Some clarifications follow:
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you have to treat and season your wooden board similar to care of cast iron pans. They need to be warmed up, oiled, etc every so often. Grapeseed oil or coconut oil would work.
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machine washing is not applicable to wooden boards but also unnecessary. Treated board has anti-microbial properties so quick wash under sink is all it needs
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any board other than wood (even among woods I'd stay away from bamboo and oaks etc) has negative effect on your knives - dulling and chipping them so you've got to select "softer" type, like cherry or maple.
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every now and then you may want to scrape off outter layer of wooden board to "refresh" it or maybe remove the imperfections like cuts and dents
I rarely used anything other than wooden board for the past couple of decades
Curious that, he walked from "settling" Russian invasion right into Iran conflict with exact same results - aggressors get emboldened, no peace in sight and POTUS47 "deeply frustrated"...