SUGAR-CANE SIRUP MANUFACTURE 19 
$0.309 per gallon.’ The total cost for making sirup is $0.407 per 
gallon. With sirup at $0.50 a gallon, the net profit is $0.093 per gal- 
lon. Therefore the profit per 45-day season is $0.093 <8,730, or 
$811.89. 
The foregoing cost data sae to small sirup plants using a 3-roller 
mill, with a rated capacity of 12 to 15 tons of cane per 12 hours and an 
extraction rarely exceeding 60 per cent. A 3-roller mill with a crusher 
will give an extraction of approximately 67 per cent, with a propor- 
tionate increase in the quantity of sirup per ton of cane. A 3-roller 
mill and crusher (5-roller mill) would cost about $1,400, and the 
engine required would cost more than one for the smaller mill. 
The increased interest and depreciation on capital invested would 
icrease slightly the operating cost per gallon of sirup made; the 
increased extraction would give a higher yield of sirup to more than 
offset the higher overhead expense. ‘Table 9 shows the cost of making 
sirup with the more expensive mill. 
TABLE 9.—Cost of producing sirup with 5-roller mill 
eae GN Oat ING UMACe M4 ke ee Leys eater aN e iies id $351. 00 
"NORTE "i Ean pk CTA ths IS eA OLN Oc age re mI OR een) ean a 1, 400. 00 
AHO Obs CVAD OLAU OI en arn) oe Acne Loe Noa ge Me eS Mace i 54. 00 
Barr AM CaT elon Gee ame Nee set aries SIR ea eons 400. 00 
BE GrAINVES AAMC INE ape R ASL cine ete, Uy Ain D ay eine Paya oad Save 2, 205. 00 
Cost of operating for 45 days (same as for 3-roller milJ)_____________ 663. 75 
Interest at 6 per cent and depreciation at 10 per cent for one year____ 352. 80 
Totaloperatingy Costei. Him kta) Ai eras Das 0E Re lee A ee oe hy OLGE a0 
Assuming that 10 tons of cane are ground per day and 21.7 gallons 
of sirup per ton of cane are obtained, using a 15° Brix juice and 67 
per cent extraction, with an actual yield 85 per cent of the theoretical, 
‘the output of sirup during a 45-day season would be 21745, or 
| 9,765 gallons. The manufacturing cost, exclusive of the cost of the 
| cane, is 
$1,016.55 
0765 OF $0.104 per gallon. The cost of cane per gallon 
| Of sirup, with cane valued at $6 per ton ($5 value in the field plus $1 
| for hauling to mill), assuming a yield of 21.7 gallons of sirup per ton 
. o 
of cane, is 
“aL or $0.276 per gallon.* The total cost for making 
sirup is $0.38 per gallon. With sirup at 50 cents a gallon, the net 
| profit would be $0.12 per gallon. The profit for a 45-day season 
would be $0.12 x 9,765, or $1,171.80. 
) engines) in 
The increased net profit is $1,171.80—$811.89, or $359.91. This 
will pay the difference between the prices of the two mills (and 
$1,000.00 
BO Ek 
The foregoing calculations show the extra profit obtained from the 
mcrease in yield of sirup resulting from an increase of 7 per cent in 
extraction. It has been assumed that the 3-roller and 5-roller mills 
give extractions of 60 per cent and 67 per cent. The data in Table 
6 were used in calculating the yields resulting from the two per- 
centages of extraction. With 15° Brix juice and 60 per cent extrac- 
tion, the theoretical yield of sirup per ton of cane is 22.84 gallons. 
or 2.8 years. | 
7 See footnote 5, page 12. sThid. 
