46 BULLETIN 983, U. S. DEPARTMENT OF AGRICULTURE. 
Cooks Nos. 53 and 54. 
Neutral juice 
before fermen- 
Beer. 
Acidity. 
tation. 
Fer- 
men- 
tation 
No. 
Per 
cent of 
total 
sugars 
fermen- 
Theo- 
retical 
alcohol. 
Fer- 
menta- 
tion 
effi- 
ciency. 
Leach 
No. 
Sp. gr. 
Reduc- 
ing 
sugars, 
Sp. gr. 
Reduc- 
ing 
sugars 
Alcohol 
(per 
cent by 
weight), 
(Uter). 
Neutral 
In- 
15° C. 
(grams 
per 
Uter). 
15° C. 
(grams 
per 
Uter). 
juice. 
crease. 
1 
10 
1. 0502 
62.28 
1. 0262 
17.40 
1.910 
71.40 
2.164 
88.26 
6.2 
12.0 
5.8 
11 
1. 0508 
61.70 
1.0280 
11.74 
2.267 
80.55 
2.418 
93.76 
2.4 
9.6 
7.2 
2 
10 
1. 0482 
61.56 
1. 0277 
14.88 
2.233 
75.34 
2.262 
98.72 
4.4 
11.2 
6.8 
11 
1.0509 
66.04 
1. 0270 
14,74 
2.313 
77.16 
2.478 
93.34 
4.4 
10.4 
6.0 
3 
10 
1. 0492 
59.52 
1.0273 
17.08 
2.171 
70.68 
2.050 
105.90 
6.4 
12.5 
6.1 
11 
1.C480 
60.24 
1.0269 
16.00 
2.152 
72.89 
2.142 
100.47 
6.0 
11.2 
5.2 
4 
10 
1.C186 
62.12 
1.0286 
18.52 
2.129 
69.62 
2.108 
101.00 
3.6 
11.4 
7.8 
11 
1. 0521 
68.70 
1.0296 
18.88 
2.360 
71.91 
2.400 
98.33 
4.0 
9.6 
5.6 
5 
10 
1.0488 
57.28 
1. 0304 
17.86 
1.844 
68.26 
1.905 
96.80 
2.4 
10.4 
8.0 
11 
1. 0532 
62.28 
1. 0338 
18.92 
1.949 
69.05 
2.087 
93.39 
3.8 
10.0 
6.2 
Cooks Nos. 53 and 54 were combined and handled in the same way; 
but not until previous experiments had indicated the quantities of 
water necessary to leach out approximately equal quantities of sugar. 
In all, nine leaches were made, although only the drip and the first 
eight leaches contained enough sugar to make a fermentation possi- 
ble. The following table shows the amounts of water added for each 
leach, the amounts of extract recovered, the sugars and total solids 
in each extract, and the percentages of total sugars fermentable, 
with the fermentation efficiencies : 
Cooks Nos. 53 and 54. 
Leach 
No. 
Amount of 
water added. 
Liters. Pounds 
Amount 
of ex- 
tract re- 
covered 
(pounds). 
Sp. gr. ! R ? duc - 
f |V ing 
tract at Jg 
i v f! (grams 
15 u 'perliter). 
Weight 
of sugars 
in ex- 
tract 
(pounds). 
Total 
soUds 
(per 
cent). 
Total 
solids 
in ex- 
tract, 
(pounds) 
Ratio of J Acidity 
sugars | (c.c. 
to total I N/10 
solids | NaOH 
(per | per 
cent). 100 c. c). 
Drip. 
1 
2 
3 
4 
5 
20 
30 
30 
30 
50 
75 
100 
300 
500 
44.0 
66.1 
66.1 
66.1 
110.2 
165.3 
220.5 
661.4 
, 102. 3 
83.29 
38.39 
61.70 
63.76 
71.32 
94.21 
160. 93 
194. 21 
647.14 
997.94 
1.0482 
1.0518 
1. 0522 
1. 0501 
1.0504 
1.0443 
1. 0360 
1. 0258 
1. 0109 
1. 0015 
74.54 
80.12 
79.48 
78.48 
75.86 
65.75 
50.08 
34.29 
14.00 
1.66 
5.93 
2.92 
4.66 
4.77 
5.12 
5.94 
7.77 
6.51 
8.96 
1.655 
8.187 
8.897 
8,866 
8.195 
8.180 
7.314 
5.757 
4.188 
2.198 
0.220 
6.72 
3.41 
5.47 
5.22 
5.83 
6.90 
9.27 
8.14 
14.21 
2.19 
88.3 
85.7 
85.3 
91.4 
87.9 
86.1 
83.4 
81.9 
63.1 
75.6 
73.4 
75.0 
74.5 
76.8 
74.6 
74.0 
63.0 
45.1 
18.9 
2.1 
