Well, actually they don't put it in a vacuum press. It goes into an oven that reduces the oxygen content of the air but it's not a vacuum. One of the common ways of doing that is to introduce steam in the final high heat stages - but the moisture reduction stage take place in regular air. The moisture is brought to 0 in regular air at moderate heat, then the heat is raised and the steam is introduced to provide a non-oxidizing environment, otherwise the wood would burn. It's this high heat that provides the aging effects. Then at the end there is moisture reintroduced to bring the wood to 2-4% moisture - 0% moisture would be too dry and brittle. Tests have shown that the weight is reduced and the speed of sound through the wood is increased (something luthiers look for). If done too quickly there can be problems just like with regular kiln drying you can collapse the cell walls, trap moisture inside and have wood that would be worse than before treatment. How dark the wood will go is dependent on the temperature that it is processed at. The idea goes back centuries - the vikings heat treated the wood for their boats - one of the properties that heat treating gives wood is that it does not take on water as readily as non-treated wood. One of the big uses of torrefied wood (by the way spelled with an e not an i) is wood decking and siding. The International ThermoWood Association in Finland set the standards for certification around the world.
My understanding is torrified wood is baked at high temps w/o oxygen (in a vacuum) to prevent it from burning. Definitely not something that can or should be done in a regular home oven. I’ve got a few pieces of torrified flame maple from Woodcraft I’m gunna use for fingerboards.
Just checked out their website, some great stuff at decent prices, any other reliable sites you source from? The worst part of getting into guitar building is finding out your local lumber yards have pretty much nothing useful
I'm planning a build with roasted ash. My plan was to finish it with Tru Oil. Can I use the Tru Oil to pore fill it, or do you recommend a different way of doing it
Well, actually they don't put it in a vacuum press. It goes into an oven that reduces the oxygen content of the air but it's not a vacuum. One of the common ways of doing that is to introduce steam in the final high heat stages - but the moisture reduction stage take place in regular air. The moisture is brought to 0 in regular air at moderate heat, then the heat is raised and the steam is introduced to provide a non-oxidizing environment, otherwise the wood would burn. It's this high heat that provides the aging effects. Then at the end there is moisture reintroduced to bring the wood to 2-4% moisture - 0% moisture would be too dry and brittle. Tests have shown that the weight is reduced and the speed of sound through the wood is increased (something luthiers look for). If done too quickly there can be problems just like with regular kiln drying you can collapse the cell walls, trap moisture inside and have wood that would be worse than before treatment. How dark the wood will go is dependent on the temperature that it is processed at.
The idea goes back centuries - the vikings heat treated the wood for their boats - one of the properties that heat treating gives wood is that it does not take on water as readily as non-treated wood. One of the big uses of torrefied wood (by the way spelled with an e not an i) is wood decking and siding. The International ThermoWood Association in Finland set the standards for certification around the world.
Thanks for some great info Big D!
nice !! thanks for sharing Derek !!
I've had a few dealers stop by the office with roasted lumbers... I've got it on my list of stuff to experiment with. It does ring REALLY well.
My understanding is torrified wood is baked at high temps w/o oxygen (in a vacuum) to prevent it from burning. Definitely not something that can or should be done in a regular home oven. I’ve got a few pieces of torrified flame maple from Woodcraft I’m gunna use for fingerboards.
Just checked out their website, some great stuff at decent prices, any other reliable sites you source from? The worst part of getting into guitar building is finding out your local lumber yards have pretty much nothing useful
I have a '12 Firebird Studio '70s Tribute with a baked maple fretboard.
This must of been a result of Gibson getting busted for the rosewood.
He said significantly lighter 36 time
Hello genius! I see all your videos! I do not speak English, do you tell me how is the process / treatment?
I'm planning a build with roasted ash. My plan was to finish it with Tru Oil. Can I use the Tru Oil to pore fill it, or do you recommend a different way of doing it
I Significantly noticed your Significantly Pronounced Pleasure for using the word Significantly.
+Steve Redenbaugh I significantly over used the word significant. My older vids are terrible lots of ummm