food grade mineral oil. We use a thin grade of oil to allow it to soak into bare timber which then protects it against water splashes etc whilst not tainting or affecting the food in any way.
It dries to a fairly matt finish; it is however ideal to use for wet sanding and when used with a very fine abrasive it can give an exceptionally smooth surface which has its own gentle glow.
Apply with a clean cloth or brush direct onto bare wood, up to three coats are recommended. If the oil sits on the surface and won’t soak in it means the timber has absorbed as much as it can and no further coats are needed. Any surplus can be removed with a clean cloth if required.
Depending on the way the item is used it might be necessary to top-up the finish, especially if it is washed regularly.