"Tung oil" finish (varnish) applied to butcher block- can I remove safely?
Hi- I'm sure this question has been asked before, so forgive me if I'm repeating others.
Purchased a nice Ikea kitchen workspace (w/ unfinished butcher block top). In my absence I told my wife to get a tung oil/linseed oil combo and apply a few coats every other day to get the oil base started (with the intention of converting to just mineral oil down the road).
My wife purchased and applied 2 or 3 coats of Formby's Tung Oil Finish (the varnish, no oil in there) and when I got back in town I discovered the fine plastic-like varnish seal over the wood.
I really wanted to keep this surface oiled only so we could prep food and block stains from leeching in, but now it has the Formby's "tung oil" varnish on there. Now I'm worried about cutting/gouging the finish and having stains seep under and into the wood.
At this point (w/ 3 coats of the Formby's varnish on it), is there a way to easily remove the existing coats and start fresh w/ mineral oil without making the butcher block look like crap, or should I just stick with what I have on there and reapply as needed?
Alternately I was wondering if in a few months time if I could go ahead w/ mineral oil on top of the (slightly worn) Formby's finish...
Any help/guidance is much appreciated.