Reply by Dallas

Here is what I found on a customer edge grain counter top in an RV I did:

The customer wanted a butcher block type edge grain counter top so I agreed to make it for them with the provision that I would use mineral oil as the finish.
The counter top was built in Florence, South Carolina, (about 300’ above sea level… this is important!).
I soaked it in a watering trough over night and let it sit for a day to dry, then repeated.
The day time temps were in the 80-90° range and the overnight temps were @ 75-80°.

I would swear that I probably soaked a half gallon of mineral oil into the wood.

3 weeks after putting his galley together, we got together and took a trip up to Eastern TN, – Western VA and back down the Blue Ridge Parkway.
Every morning we wiped up puddles of mineral oil on the counter. I don’t know if it was temp differences, altitude differences or just the natural swelling of the wood in the humidity.

When we got home I dismantled the counter top and soaked it again, this time placing it in one of those vacuum storage bags. I used a shop vac, Crapsman, I think, and left it running overnight.
The next morning I took it out and set it in the sun to dry.
The next day I put a mixture of bee’s wax and mineral oil in the bag and let it sit overnight with a vacuum.

He’s been using it for the last 8 years and has been to West Yellowstone, MT. (Altitude 8600’), and up into Alaska with no problems.
He did go down to Quartzite , Az for an RV convention one year and had a small problem, but nothing like the first problem.

This was just my experience, I wonder if yours would differ much?

-- Improvise.... Adapt...... Overcome!