乾燥は一方に直射日光や熱が加わらない場所がベター。キズ対策刃のキズは粗塩をまぶしタワシで水洗いするか、クレンザーで擦ると抗菌効果あり。重曹をまな板にすり込んで水洗いするのもよし。反りや黒ズミ予防まな板は木目が縦になるように立てかけて保管すると反りにくいです。また片面しか使用しなくても両面を水で洗って両面を濡らしてから乾かします。反りの直し方薄いまな板は全体に水をかけ日陰で立てて置けば大概は戻ります。大きく反った時は凹面に塗れたふきんを掛けて凸面を日光にあてて修正をかけてみ
It is better not to expose in the sun light or heat on one side when in dry.Scratch preventionPutting coarse salt and water cleaning with a scrub brush or scrubbing with cleanser on scratch of sword exerts the antibacterial action.Prevention of curvature and darkeningKeeping cutting board stand up with the line of wood grain vertically prevents curvature. Also water cleaning on the both sides and dry after use, although having used only on one side.How to fix curvatureIt is most likely fixable to put water entirely on the thin cutting board and stand it up in the shade. When it curves greatly, put a wet cloth on the concave side and expose it in the sun light with the convex side up and fix.