Butchers blocks are maple, or sycamore.You think? Try putting a piece of planed beech outside for a few months and see what happens.
Aren't butcher's blocks end grain beech? Water never touches them.
How to clean a butchers block - This I know, im a time served Butcher of 15 years before retraining in cabinetry.Are you suggesting that Butchers don't clean their blocks every day? They scrub them with water and a wire brush!
This is done every night. It's hard going, its not a wipe over, you need to do it for about ten minutes constant
Bucket of super hot water, you wipe all the blood and grease off first, then fling handfuls of sawdust over the top
Then comes the brush, and the wire brush is flat blades rather than wire, and you scrub one way, then the other etc etc. You scrub with the blades flat on, NEVER side on, because you do this once in the apprenticeship and learn a hard lesson. Side on the brush blades catch on the timber and the whole brush flips over and the sharp blades make a nice impression in your wrists
Give it sweep off with a dusting brush to get rid of the scrubbed bits and leave it till the next day. day.
The spacer bit of wood is to keep the blades stiff.