I'm trying to get a clear understanding of the different methods for finishing cutting boards. I've come across two main approaches that people seem to swear by:
1) **Mineral Oil Soaking**: This method uses mineral oil, which is inert and won't go rancid since it lacks fatty acids. It's great for penetrating end grain boards, but it can wash out easily, requiring regular re-soaking.
2) **Natural Oils (Linseed, Tung, Orange, Grapeseed)**: There's a variety of opinions here, but linseed oil seems to get the most praise. Boiled linseed dries faster but could have non-food safe additives. The idea is to apply a thin coat and let it cure rather than soaking, as un-cured oils can harbor bacteria and cause odors over time. They do go rancid in the sense that they polymerize into a protective layer, but that can wear down too.
I'm curious if combining the two methods could work—like soaking the board in mineral oil first and then applying one of the organic oils to finish it off. Would that ensure it's more durable and hygienic? Also, any tips on curing times and issues with these popular oils?
3 Answers
A lot of people get confused because they think they need to "finish" a cutting board when it's really more about maintenance. Regularly applying a light coat of mineral oil is key. You’ll need to keep reapplying it because washing the board wipes off some of the oil. The soaking trend is overhyped—it doesn't add much value. The main thing is maintaining that surface. Check with professional chefs; none of them advocate for soaking.
I've actually done two coats of tung oil on my board, and I've been using it daily, even washing it with soap after. It’s been over three years, and aside from the usual cuts, it’s held up great!
I would only use mineral oil and beeswax for my boards. Pure tung oil is okay, but the cure time can take weeks, which isn't ideal if you need to use your board regularly. The main purpose of these oils is to keep moisture out, not to combat bacteria, since wood naturally does that well.
But why not go for an oil that cures instead? They provide longer protection, especially with proper application.