[n. of action f. L. torrefacĕre to TORREFY: see -TION and cf. F. torréfaction.] The process of drying or roasting by fire; the state or condition of being roasted.

1

1612.  Woodall, Surg. Mate, Wks. (1653), 274. Torrefaction like siccation, but more violent.

2

1648.  Bp. Hall, Serm. at Higham, Rem. Wks. (1660), 196. Here was not a scorching and blistering but a vehement and full torrefaction.

3

1758.  Reid, trans. Macquer’s Chym., I. 155. The term calcination is generally used to express this torrefaction of antimony.

4

1829.  Togno & Durand, trans. Edwards & Vavasseur’s Man. Mat. Med., 144. 189. The torrefaction to which coffee is subjected before employing it, gives it a light brown colour, and generates that perfume and exquisite taste which causes it to be so much sought for by almost every person.

5

1839.  De Quincey, Casuistry Rom. Meals, Wks. 1859, III. 252. Ping … now for the first time tasted it [pig] in a state of torrefaction.

6