that is one way to describe it.
what I have learned and how I have learned to explain it is that all the moisture is sucked out of the wood, kind of like a kiln on steroids and then the moisture level is increased to desired level.
Torrefied Wood
The technology consists of heating the wood at a very high temperature (from 190 C to 240 C), in a torrefaction kiln (autoclave) at controlled atmosphere and low in oxygen. The length of the process, as well as the temperature degree sustained during a determined period, depends on the species and the desired color. This technology requires a pre-drying process using conventional kiln driers, to lower the moisture level between 6% and 10%. After that, the torrefaction kiln lowers the moisture level to 0%. Finally, the wood is placed in a conditioning chamber where the temperature is gradually lowered by controlled steam injection. The moisture level of the product is increased between 3% and 6%, in order to give back to the wood its natural flexibility. This conditioning stabilizes the wood and allows better quality manufacturing.