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It's not exactly a labour intensive process.
Personally I don't like using mineral oil as a wood finish because it's an incredibly vague catch all term for a petrochemical - you don't know what you're getting. Worse case scenario it is defined by the world health organisation as a class 1 carcinogen (known to cause cancer in humans). I certainly wouldn't want it around my food or my kids food. I avoid using it at work because I deal with enough toxic shit without having to worry about more of it.
But if it takes 3 weeks to cure you’re not saving time over mineral oil plus the cost of it : )