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RE: Questions regarding the color of Walnut, and when to cut it1/26
Is there any harm to the color of Northeast walnut if you cut it when you take it down within one month, vs waiting a year or two?
Also, what is the difference between Claro walnut from the West coast, and Northeast walnut?
Walnut color when first sawing can be quite greenish. It will quickly darken as it oxidizes when exposed to air and light. There is no need to wait.
High heat at 100% RH (called steaming) accelerates the darkening reaction and also moves some chemicals from the heartwood to sapwood, providing darker colored sapwood.
Claro walnut is a different species, but has a similar appearance after drying. Claro has more tendency to develop water pockets...like a small region in an 8/4 piece that is maybe 20% MC while the rest of the piece dried to 7% MC. Black walnut tends to have more uniform color.
I've found that delay in sawing allows the sapwood to darken and the distinction between it and the darker heart wood, it kind of bleeds over. But waiting also allows more time for the bugs to make holes. I cut mostly Claro, western black.