We have this butcher block countertop and it is currently not sealed or varnished. I try to keep up with applying Howard brand oil and wax, but it seems to not last very long. Should I seal it, and if so, with what? Danish oil, or some type of polyurethane/varnish, or ? We do food prep on it (not directly on it of course) so that might be a consideration.
We live in the PNW so it is frequently humid during winters and then quite dry during summer, and I worry that this cycling will make the blocks separate or I will otherwise somehow inadvertently ruin this very nice counter. I did not install it, so I do not know what type of wood it is, where it came from etc.