Operator`s manual
Belshaw Bros., Inc. • www.belshaw.com • Phone 206-322-5474 • Fax 206-322-5425 
6  MN-1527EN  Type B Donut Cutter OM 
Calculating Correct Water Temperature 
The following is an example of how to calculate the correct water temperature to use. You must use your 
own room temperature, dry mix temperature, desired batter temperature, and, if you are making yeast-
raised donuts, estimated temperature increase during mixing. 
  Cake Donuts    Yeast-Raised Donuts 
°F 
°C 
°F 
°C 
Room temperature  72 22.2  72 22.2 
Dry mix temperature   +70   +21.1   +70  +21.1 
Total A 
142 43.3  142 43.3 
Desired batter temperature  75 23.9  80 26.7 
   x3     x3     x3     x3 
Total B 
225 71.7  240 80.1 
Total B 
225 71.7  240 80.1 
-Total A 
 -142 
   -43.3   -142  -43.3 
Desired water temp. for cake donuts 
83°F 
28.4°C 
 98  36.8 
↓ 
↓ 
Figure from above  98    36.8 
Temperature increase during mixing (average: 30°F/17°C) 
 -30     -17 
Desired water temperature for yeast-raised donuts 
68°F 
19.8°C 
Ratios of Plunger Sizes to 
Donut Weights 
The weights given are for donuts without icings 
or other toppings. They are provided for 
reference only, as weights vary according to the 
density of the batter. 
Plunger Size  Donut Weight per 
Dozen 
1”  5-8 oz/142-227 g 
1 5/8”  14-17 oz/397-482 g 
1 3/4”  16-20 oz/454-567 g 
1 7/8”  19-24 oz/539-680 g 
2"  22-27 oz/624-765 g 
Temperature Conversion 
To convert temperatures from Fahrenheit to 
Celsius, subtract 32 from °F and divide the result 
by 1.8. For example, 212°F-32/1.8 = 100°C. 
To convert temperatures from Celsius to 
Fahrenheit, multiply °C by 1.8 and add 32 to the 
result. For example, (100°C x 1.8) + 32 = 212°F. 
°F  °C  °F  °C 
55 12.8 340 171.1 
60 15.6 345 173.9 
65 18.3 350 176.7 
70 21.2 355 179.4 
75 23.9 360 182.2 
80 26.7 365 185.0 
325 162.8 370 187.8 
330 165.6 375 190.6 
335 168.3 380 193.3 










