37
Kiln dried rounds splitting
(lemmy.world)
A handmade home for woodworkers and admirers of woodworkers. Our community icon is submitted by @1985MustangCobra@lemmy.ca whose father was inspired to start woodworking by Norm and the New Yankee Workshop.
While you're at it, maybe plane or scrape a couple of rounds, too. If sanding marks and raised grain really do increase the exposed area, getting rid of them will reduce it.
I would think someone out there has already done the experiments, but I didn't find anything with a quick look.
Also, if you're not committed to shellac, there are coatings that are less permeable to water vapour.