EVAPORATED MitnK—MOoJONNIER CONTROLLER 147 
2. A standard method of determining, by means of a pilot 
sterilizer, a viscosimeter and a color test, the proper viscosity 
and color that the evaparated milk should have when it comes 
from the sterilizer; and 
3. A standard method of determining the amount of bicar- 
bonate of soda that must be added to any given batch to evap- 
orated milk in case its properties are such, that it is unsafe to 
subject it, without such treatment, to the temperature condi- 
tions that fall within the range of the standardized process of 
sterilization. 
Equipment for Mojonnier Method.—The equipment designed 
for this method of evaporated milk control, is illustrated in 
Fig. 65, and consists of the following apparatus: 
1. One pilot sterilizer with motor, complete 
2. 2 viscosimeters 
3. 1 venthole sample can filler 
4+. Glassware for making up and measuring sodium bicarbon- 
ate solution 
5. 1 torsion balance 
6. Open-top cups and venthole tin cans. 
Preparation of 10‘; Sodium Bicarbonate Solution.—The bi- 
carbonate of soda is used in this test in the form of a 10 per 
cent solution. This solution is prepared as follows: 
1. Weigh empty bottle to .O1 ounce 
2. Add 3 ounces bicarbonate to bottle 
3. Add 27 ounces warm water to bottle. 
Shake thoroughly until the bicarbonate is all dissolved. 
Draw out as needed into dispensing bottle, filling the same not 
over half full. Keep remainder tightly corked in the stock bottle 
until needed. Should the bicarbonate crystallize out, prepare 
a new lot. The above solution contains exactly 10 per cent 
sodium bicarbonate. 
Adding the Sodium Bicarbonate Solution to Sample Cans.— 
Arrange in a row five open-top cups, marked—X-1-2-3-4 respect- 
ively. hese cups are furnished with the Controller. Cup 
marked X is blank, to which no bicarbonate is added. To cup 
marked No. 1 add one charge of sodium bicarbonate from the 
