nm 
Shin 
oe 
Fig. 32. 
Beaumé hy- 
drometer for 
sweetened 
condensed 
milk 
Courtesy 
Cc. J. Tagliabue 
Mfg. Co. 
SWEETENED CONDENSED Mut,K—StTRIKING 99 
a teaspoon. The transparency of the milk when thus 
held against the light and the manner in which the 
milk piles up in the cup furnish a practical index to 
its density. The last method is preferable because 
of its greater rapidity. For best results the use of 
a Beaumcé hydrometer, especially constructed for 
sweetened condensed milk, graduated to from 30 
to 37 degrees B. and with subdivisions of one-tenth 
degrees is recommended. 
Use of Beaumé Hydrometer.—Bevinners and 
inexperienced operators do well to take numerous 
samples from the batch in the operating pan and to 
start sampling early, so as to avoid over-condens- 
ing. No definite figure at which the Beaumé hydrom- 
eter should be read can be stated that would show 
the proper density under all conditions. The Beaumé 
reading of sweetened condensed milk of the proper 
concentration varies with such factors as per cent 
of fat, per cent of suerose and per cent solids, ratio 
of concentration and temperature of the condensed 
milk when the reading is taken. However, for gen- 
eral guidance, it may be stated that condensed milk 
of a concentration of 2.5.:1, made from fresh milk 
of average richness and containing sucrose at the 
ratio of sixteen pounds of sugar per one hundred 
pounds of fresh milk, will show a Beaume reading 
f 
of about 3. 
32 degrees B. at 120 degrees F. Sweetened con- 
3.5 degrees B. at 6O degrees F., or about 
densed skim milk containing approximately 40 per 
cent sucrose will show a Beaumeé reading at 60 de- 
erees F. of about 37 degrees B.. or about 35.5 de- 
grees B. at 120 degrees F. If it is intended to use 
more sugar (44%.) and to limit the per cent milk 
solids to 28 per cent, whole milk is condensed until 
the Beaumeé hydrometer at 130 degrees F. shows 
314 degrees B. Skimmed sweetened condensed milk 
containing 28 per cent milk solids and 42 per cent 
sucrose tests about 34} degrees B. at 130 degrees F. 
