My stone always looks like that to be fair. I use it, scrape off as much as I can when done. Flip it over and use the other side next time (again, scraping off anything that survived on the underside for the full duration of the last use) and repeat. Wouldn't be concerned about keeping it looking as new.
My stone always looks like that to be fair. I use it, scrape off as much as I can when done. Flip it over and use the other side next time (again, scraping off anything that survived on the underside for the full duration of the last use) and repeat. Wouldn't be concerned about keeping it looking as new.