IKEA's oak veneer kitchen worktops are typically pre-treated with a layer of oil or lacquer to protect the wood and enhance its appearance. The specific treatment may vary depending on the product line and availability in your region.
If your IKEA oak veneer worktop is already pre-oiled, it is generally not necessary to add additional oil to the surface. Over-oiling can lead to a sticky or greasy surface and may not provide any additional benefits.
However, if you notice that the worktop's finish has worn down in certain areas or appears dry, you can consider re-oiling those specific spots. For this, use the same type of oil that IKEA used for the original treatment. This information can usually be found on the IKEA product label or in the product description.
If your oak veneer worktop is not pre-oiled and you want to apply oil for the first time, make sure to use a suitable food-safe wood oil or finish. Follow the manufacturer's instructions on how to apply the oil properly, and always do a small test in an inconspicuous area to ensure the oil provides the desired result.
Keep in mind that my information might be outdated, and IKEA's product offerings and recommendations may have changed since then. To get the most current and accurate advice, I recommend checking directly with IKEA or referring to the product documentation and care instructions that come with your specific oak veneer worktop.