The Hawaiian gazette., 1885-11-24
Maooration and the Two Roll Mil.

EDuoR GAZETTE The summary of the work
! done at kohala since the introduction of the new
| machinery, as related in the GAZETTE of the 3ri
ult., demonstrates Its value an auxiliary, as a
rOie and the separation of its parts into dJy and
rf grinding will enable every planter TO Judge for
himself whether and when mdceyufioH will pay.
lhe two together will pay when the trash is suffi-
cient TO do the work of the MILL but when fuel has
! TO be bought, the increased amount of sugar OBJ
| tanned by maceration may bring enough to pay for
the coal TO eyaporate tie water used in the mace
| ration.
The difficulty of judging whether or not TO mace
rate the trash has arisen from the uncertainty of
how much of the increased yield of sugar is due to
! maceration.
/ AND HARLASD," page l4S, says: at seems TO be an
undecided point whether the saturation or the extra
| crushing should be credited with the increased
| yield of juice probably Both assist
! Ihe experiment at Kohala has been conducted
IN manner tgrindinG both wet and dry) to
demonstrate as far as possible this point. Ii will
be clear that the sugar obtained by maceration
| must be enough more than would be obtained nv
dry grinding TO pay all additional expenses or the
maceratlon will be loss instead of a gam IL
there are no additional expenses for labor or other
wise attending the process, then these will be for
iuel alone, and If the trash furnishes this then
maceration will pay, unless the trash is worth
more TO return to the land than the cost of fueI
would be, for evaporation.
| Cane was crushed yielding CJy ueastTemeHf)
i4',po imperial gallons of density to give 2G2 39j
| lbs. OF sugar The trash was then macerated with
not water and run through roll mill Welding
647OO gallons OF the diluted Juice of density 10
yleid 6l,fOi iDs of sugar being 1852 per cent of
the original yield, but S40T2 gallons of Juice of the
original density would have given this amount of
sugar consequently there must have been added
9'6zo gallons OF water to bring the quantity up 10
o4,iuv gallons and the density down SO low as 10
require so largo quantity of Juice TO WELD the
6l,7q lbs. sugar
Again 1885 gallons juice 1854 .49l p,s. supar.
@ @eIe e1traeted from other cane of similar quality,
ana ihe trash run through the roller mill irii,oi
'ce'tiRg or mdceIutioH yielding 1885 gallons Juice
OF density to give 3O50i lbs supar=l66i per
cent. of the original product. This shows differ
ehce OF nearly per cent. in favor of maceration
IN Inc m and naoeraton gave increase Of 81 7OI rs
Ihe@ " without Sc uldhaye given " Of. 4S,5Si rs
The difference in favor OF maceraiou is in n. Is1sO s
This at &C. net per n would bc............. sgO50
The theoretical evaporating power of N. of
coal Is 10. of water, but notice that the autbor
before me for safety in his estimates gives credit
Tor only ibs. of water to n of coal The .s 9S0
IDS OF water added in tho maceration Mt Knbala
would require TO evaporate it 765.570 MS of coal
winch at so per ton would amount TO S7G5 70
Whien deducted from the S906 proceeds, of the
lS2O lbs of sugar leave the gain to be credited to
maceration SI40.30.
When the trash is sufficient. then it is all oain
Ihe yalne OF the trash for fuel cannot be deter
@ iheu except oy use, 1t Is so variable in quality
cane containing from 8 to II per cent of woody
hore, Its character depending upon SOIL tempera-
ture, moisture age DC as we'll rs locality and al
ntude; The juice will be more thoroughly ex
tracted from soft, than hard canes by the first
mill and the last will be better for fuel WettIng
Will diminish the value of either for fuel if NOT
The Intelligent manager can tell irheH and rLere
70 use water If he will observe, rs it is presumed
ne VIII do. The character of the cane NAV make
II prohtable To-day, and a loss tomorrow on tho
same plantation. change from hard to soft
cane III kohala diminished the amount of mira
from the second mill, with or without macerstinn
anu diminished the advantage of lcst. over I,1
erihuing and u will or may be q loss to-day. to
follow the practise of yesterday ia rI;eL fL,y ,s
gaih. Maceraiion is good, bat to be used with
discrimination Yours truly.
= r,v-,r