Addicted DIY Enthusiast
Sounds about right to me. Usually around 1 1/2 weeks. Although, it can be quicker sometimes.
Thanks for the reply my friend...I've got to say the answer is unknown. They blacken up fairly quickly but this is a curing process that actually makes the wood harder. Our ancestors would harden their spearheads using this technique.
It would also depend on usage etc. I'd think it would get thinner over time but would equate to a heck of a lot of bowls. Easily replaceable with a slice of 1/2" dowelling.