All done! Thanks for all the advice - long hours sanding (carefully around the sink ) and then a couple of light coats of Trip Trap white worktop oil and then 4 coats of Tung oil applied over two days - as Oilman suggested. Water spills and anything else just beads and floats on the top. It will...
Thank you brad for the advice
unfortunately we live in a flat on the top floor - no outside space except for windy balcony! So sanding in situ is what I have to do - and yes it's a nightmare!
Thank you very much for the advice - I think if we can't sand all the orange dye out I may go darker maybe use a walnut dye then use tung oil but definitely tung oil from now on!
We recently installed oak wooden worktops and stupidly used the danish oil purchased from the supplier. It had a pigment in the oil and they are now not so much enhanced white oak as my dad's creosoted shed. I've sanded back ( 100 then 150 then 250) but it seems to have really permeated the wood...