CHEDDAR CUEESE 347 



225 lb. milk x 30 = 6750 lb. of milk delivered 



.37% — .29% = .08% more fat retained in cheese made by B than 

 by A 



6750 (lb. of milk) X .85 = 5737.5, approximate weight in lb. of 

 whey 



5737.5 X .0008 = 4.59, number of lb. more fat retained in cheese 

 made by B than by A 



If each lb. of fat yields 2.68 lb. of cheese, 



4.59 X 2.68 = 12.3, number of lb. more cheese made by B than by 

 A 



$.13 X 12.3 = $1.60. Answer. 



Problem 3 



Two farmers each deliver daily 385 lb. of milk to the same cheese 

 factory. A's milk tests 3.5 per cent fat and B's tests 4.5 per cent fat. 

 If they are paid for their milk on the basis of the yield of cheese, how 

 much more will B receive than A in one month, cheese selling for 13 

 cents a pound ? 



385 lb. milk X 30 = 11,550 lb. milk delivered by each in 30 days 

 11,550' X .035 = 404.25, number of lb. fat delivered by A 

 Each lb. of fat in 3.5 % milk yields 2.68 lb. of cheese (see table above) 

 404.25 X 2.68 = 1083.39, number of lb. of cheese from A's milk 

 $.13 X 1083.39 = $140.84, amount that A should receive for his milk 

 11,550 X .045 = 519.75, number of lb. fat delivered by B 

 Each pound of fat in 4.5 % milk yields 2.61 lb. of cheese 

 519.75 X 2.61 = 1356.55, number of lb. of cheese from B's milk 

 $.13 X 1356.55 = $176.35, amount that B should receive for his milk 

 $176.35 - $140.84 = $35.51, amount that B should receive more 

 than A for his milk. Answer. 



Value of fat usually lost in whey. 



Problem 4 



A cheese factory determines to make whey butter from 10,000 lb. 

 of whey. It tests .32 of 1 per cent fat. With an overrun of 12 per cent, 

 and butter worth 25 cents a pound, compute the value of the whey 

 butter for one day. 



10,000 X .0032 = 32, number of lb. of fat 



32 X .12 = 3.84, number of lb. overrun 



32 lb. + 3.84 lb. = 35.84, number of lb. butter 



25 cents x 35.84 = $8.96, value of whey butter for one day. 

 Answer, 



