tilt! dilti n><|Mir<'il to «ilcnliito tho efficiency of the hrewinjj pnxf«« n» n-pinlH tin« 

 c-ciiivci'sioii of tin* starch uscil into nicohol. 



As the silk«'' containt'tl 1 1.14 jht cont. of alcohol liy weight, the tot.il ucijjht 

 of ulisoliilc iilcohol contiiniitl in :V2(» kw. wiw :i*'>..V2 kw. Tin .'iH kw. of rei(i<liie, 

 tilso coiitjiineil (I |>fr cent., luiionnlin;; iiltogether to :148 kw.; the totitl i|imntily 

 of iilcohol, tlicrefoiv, which the hrcwcr olifiiiiic»! was ."W.S kw. 



We hiive ivlremly h'-'ii ([i 4i'i «li't ili.' niiitcriiiN ii<;.',l Cn nii.tn 



jinioiiiited to: — 



Dry rice 170.1 kw. 



Water 3-2".t.()3 „ 



.'i<)4.i:i 



'I'lic ilry rice cuntjiins on an avcri^«' H4 per cent of stirch. which, if it wen« 

 coniplctely converted into alcohol would furnish SO kw. AKthea-nonnt netintlly 

 olttiiined was only 39.8 kw. we we that the yield is not (piit«' one half of that 

 which is theoretically ohtainiihle. In avunite nninlnTs it in 4'.( 75 per c<'iit. 

 That the loss of material during the pn-piration of the sake is considerahle will U> 

 evident when tho number of traiisforencei from onu ve9r«)l to ftnother i« consi- 

 tlered. Two other sources of loss also are very im|>ortAnt, the loss of matter hy 

 the rice first, during the i)rocess of cleaning and wiv-shing, and secondly, during 

 the (iltmtion. 



The following calcidation will furnish us with some guide to tho quantity 

 of material lost in these operations. Allowance is miule for the (nrltonie 

 acid evolved hy assuming that it aniomits to 9S per cent, of the alcohol 

 fornied. This numl)er is tho result of experiments made hy many former olwer- 

 vers uiton the ratio of carlwinic acid to alcohol forme«! during ordinary fennentation. 

 Any dilference lietween it and the truth will lie U<o small to aficct the conclusinns 



Total weight of sake obtained 32G kw. 



„ .. ,, residue ., .OS „ 



„ ., carl )onic acid lost 39 ,, 



423 „ « 



As ;'»(J4.1.'5 kw. of dry rice and water were used at starling the total quantity, 

 accounted for is only 81 jht cent. The weight of dry rice given alxivc was 

 eonectcd for the loss of weight during the conversion of n (»art of it into k<iji, 

 so that the loss of 1(> per cent, is over and alxivo that exi»erienccd during the 

 formation of knji. And, indeed, this is not the whole loss Kvnus<' no a»'<<>iiiil 

 is taken of the additional water used in clesuiing the ves8«'ls. uiii.iuiitiii.r to iil..iit 

 18 kuwamme, which woidd mise the loss to 19 per cent. 



The yield of alcohol obtained at ItJimi is rather liigher than that found in tho 

 Tokio brewery. Tlie quantity of sake obtained is 13..32 kokii, which will contain 



• The cMaji'i.'.; i-nrlK)!!!)' mill must !»■ KaliinU«-«! with Wiii<'r. mid »ill b1»<> r , 

 tion of more or l>'^:4 oftlie ulcohul foniMMl, liut it in not fXMfibli' tocstimnli' lli'< ni 

 with ttD}- ajiproach tu accuracy, and it i«, tborcfure, included in tho total loa« of 10 per cent. 



