The word Torefying is misspelled against Torrefying, which is present continuous of "Torrefy"
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Torrefying has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings to & efying which should not be misspelled with single 'R'
Wrong Spelling:  to-r-efying 
Correct Spelling:  to-rr-efying 
Find more incorrect spellings of Torrefying to spell right way.