of charcoal produced from these two woods by the method of the present invention are virtually identical table 1______________________________________reactor performance run 1 run 2 eucalyptus kiawe______________________________________wood loaded 20 kg 41 kg moist moisture content 7 0 kg 5 7 kg wet basis 35 14 charcoal yield 5 7 kg 16 kg 44 sup 45 sup heating time 2 5 hrs 2 5 hrs cold start cold start total heat 19 kw hr 19 kw hr required 3 3 kw hr kg 1 2 kw hr kg ______________________________________ sup fractional yield of charcoal is the ratio of weight of charcoal produced to the wood fed on an oven dry basis kwhr kg of charcoal production in table 2 there is shown an analysis of 34 aloha 34 eucalyptus charcoal and 34 aloha 34 kiawe charcoal made according to the invention as compared to three types of commercial charcoals the two charcoals made by the present invention are comparable to the commercial charcoals table 2__________________________________________________________________________comparison of aloha charcoal withcommercial charcoalaloha aloha commercial commercial commercialeucalyptus kiawe briquette kiawe mesquitecharcoal charcoal charcoal charcoal charcoal__________________________________________________________________________btu lb13800 13200 9810 12800 13700volatile23 3 21 4 36 4 28 3 9 04 matterfixed75 4 75 9 46 5 69.