The attraction is easy to understand: a warm wood surface makes a kitchen feel less like a collection of appliances. Then someone leaves a wet sponge beside the faucet overnight. Neither of these things is surprising. The question is whether the material suits the way your household uses that particular stretch of counter.

Choose the job before the finish

Do you want to chop directly on the wood, or do you want the look of wood beneath a separate cutting board? Decide before ordering. A countertop coated for a furniture-like finish is not automatically a giant chopping board.

John Boos distinguishes its oil and Varnique countertop finishes: it presents the oil option for direct food preparation and the sealed Varnique option for uses including tops near sinks, where direct chopping is not intended. That is guidance for its products, not an instruction to apply any household varnish to any wood top.

The cut edge matters as much as the top

Ask the countertop supplier to approve the sink type and the full cutout detail. Include the underside, exposed edges, faucet holes, joint to the sink, and nearby backsplash. The nice flat surface is only one of the places water can reach.

  • Does the supplier allow this sink configuration in this countertop?
  • Which finish belongs on the cutout, holes, underside, and exposed top?
  • Who applies the finish after site cutting or drilling?
  • How will the sink be supported independently of assumptions about the wood?
  • What care or warranty conditions apply to this particular arrangement?

Get those answers before someone cuts a hole. A generic online photo of an undermount sink in wood does not tell you how that counter was made, maintained, or warranted.

Run the wet-sponge reality check

Think about your normal evening. Do dishes dry on the counter? Does water collect around the faucet? Is someone likely to leave a soaking pan there? You are selecting a daily routine along with the material, and the least enthusiastic cleaner in the household gets a vote.

John Boos care guidance separates care for its different wood products and finishes. Keep the instructions for your actual top, including any re-oiling or finish repair. Do not assume advice for a removable cutting board covers a fixed countertop and sink cutout.

If dark marks have already appeared

Photograph the affected area and look for a recurring water source, including a leaking faucet base or sink joint. Have leaks corrected before planning cosmetic repair. Do not automatically sand through an unknown finish or pour a stronger cleaner onto the mark.

Ask the supplier or a wood-finishing professional whether the damage is in the finish, the wood, or the assembly beneath it. The right repair depends on that distinction. A beautifully restored patch is less satisfying when the same drip is waiting to start again.