I know it's good to look after your stuff. But a chopping board isn't supposed to look box fresh.
Use it until it goes concave then buy another.
It looks like there's a scraper to refinish it. https://cuttingedgeknives.co.uk/products/hasegawa-cutting-board-scraper?
When used with a sharp knife with Japanese knife technique, the Hasegawa boards barely get any cuts or marks.
More slicing through food, rather than chopping or mincing.
Plastic/rubber boards with cuts and gouges are less hygienic than a wooden board with the same.
Only in specific circumstances. If they are both regularly cleaned regularly and well, plastics are far more hygienic.
@Acliff started
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I know it's good to look after your stuff. But a chopping board isn't supposed to look box fresh.
Use it until it goes concave then buy another.
It looks like there's a scraper to refinish it.
https://cuttingedgeknives.co.uk/products/hasegawa-cutting-board-scraper?