Learn how to say Torrefy correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word torrefy:
verb (torrefies, torrefying, torrefied)
[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
early 17th century: from French torréfier, from Latin torrefacere ‘dry by heat’, from torrere ‘parch, scorch’