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Air-dried vs. Kiln-dried Wood
Are they different to saw, chisel and plane? Does it matter?
“You didn’t get really low-equilibrium moisture contents in houses in the winter, so there wasn’t as much need for kiln drying,” says Mike Milota, professor emeritus of Wood Science & Engineering, College of Forestry, Oregon State University. William Smith, professor and director of the Wood Utilization Service in the Department of Sustainable Resources Management at SUNY College of Environmental Science and Forestry, says the basic kiln-drying process – controlling temperature and relative humidity – has not changed much. Today, Smith says most hardwood companies utilize kiln samples, which are boards about 30" long, to monitor moisture content levels and adjust temperature and humidity schedules appropriately.
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