Hi, I recently bought a wooden cutting board in a local market in Thailand. The board is basically a round slice of a tree. Once I got home and unpacked it I realised that the wood has dozens of small radial slits. The market was not touristic at all so I believe they actually use them like this, the lady who sold it to me said it could last 10 years. But I wonder... inevitably food will lodge there and that's a health concern. Now I've just coated it with coconut oil but that's not enough to seal the slits.
I like the board.
So my question is: should this be a concern? And if so, is there any way to solve it (even though it's now seasoned with oil)?