When to turn temp up for sterilization

[JamieK]

Hey guys, im just about to finish a load in my l200m . Currently my dry bulb is set at 120° and wet bulb is at 98°. The average moisture of the lumber is at 12% and am at day 13. At what moisture do you guys start cranking the heat up for sterilization? 

[K-Guy]

It depends on if it is softwood or hardwood,  for hardwood  most dry it 8% or less,  for softwood not below 10% or the wood becomes brittle and hard to machine. 

[JamieK]

So if i crank it up to 140° at 8% after 48 hours my moisture should be in the target range. Is that correct? 

[JamieK]

It is hardwood in the kiln

[YellowHammer]

I dry to 8% then increase the temp set point to 150°F and when that is reached, hold for 24 hours, compressor off, then let it go down slowly and it will end up at 7% and done.

[JamieK]

Thank you guys, I sure appreciate your time