My new plastic cutting boards have a textured surface. Is this unsanitary?

The textured surface consists of tiny bumps molded into the surface. The pitch of the bumps is about 1mm.

  • A photo would help... (the edges and surface structure of the bumps e.g.) – Jan Doggen Sep 6 '17 at 7:36
  • I'm not sure if it's unsanitary or not but many plastic cutting boards are treated with triclosan (which has been linked to hormone disruption, etc.) – padma Sep 10 '17 at 20:15

There is another disadvantage to consider with very acute knives (eg sashimi knives, usuba bocho, gyutos sharpened to 12 degrees per side or below) on these kinds of boards: The edge tends to get trapped between the bumps, and instead of camming out, can be bent out of alignment if torque is accidentally applied to the blade (easily happens with rock chopping/walking techniques). Also, you tend to get unclean cuts (similar to a tear-off perforation) at times because the edge bites into the bumps while the food is pushed between them (can happen eg when cutting very elastic foods, like raw dough).

Also, the anti-slip effect from that texture is questionable at best, these boards can be even more slippery on some surfaces - if textured both sides, they can also slide around on your work surface (this is dangerous!) even more than if they were smooth - some mitigation can be achieved by putting towels or paper between the surfaces...

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