Definition of torrefy in English:
torrefy
verbtorrefies, torrefying, torrefied ˈtɒrɪfʌɪ
[with object]technical Roast, scorch, or dry (a substance such as an ore, a drug, or a fuel) with heat to drive off all moisture or impurities.
torrefying wood loses 30% of the mass but only 10% of the energy
Derivatives
noun tɒrɪˈfakʃ(ə)n
technical adjective
technical
Origin
Early 17th century: from French torréfier, from Latin torrefacere 'dry by heat', from torrere 'parch, scorch'.