Rancid oil develops an off odor and can potentially harbor harmful bacteria, negating the purpose of a clean surface. A finish, such as a polyurethane or epoxy, creates a hard, plastic-like shell on the surface of the wood.
Avoid Rancid Oil Butcher Block
Understanding Food Safe Oil vs. Finish The terminology surrounding wood care can be confusing, so it is essential to distinguish between a food safe oil and a polyurethane finish.
Products like vegetable oil, olive oil, or walnut oil are not recommended for butcher blocks because they are prone to rancidity. New butcher blocks require a curing process that involves applying a thick layer of oil, allowing it to soak in for 15 to 20 minutes, and then wiping off any excess.
Avoid Rancid Oil on Butcher Block Countertops
Highly refined mineral oil is colorless, odorless, and inert, meaning it will not react with food or impart any flavor. The correct oil penetrates the wood fibers, creating a durable barrier that repels water and prevents staining, while also being completely non-toxic and resistant to the acidic nature of common foods.
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