122 



PRACTICAL POULTRY PRODUCTION 



METHODS 

 Water glass method. One of the most satisfactory 

 methods for preserving eggs is by the use of sodium silicate, 

 or, as it is commonly called, water glass. The present price 

 of sodium silicate is from twenty-five to thirty cents a quart 

 and at this price eggs may be preserved at a cost of approxi- 

 mately three cents a dozen. On account of the low cost of 

 preserving eggs it is not desirable to use water glass solution 

 a second time, as itfe keeping quality deteriorates with age. 

 Use one quart of sodium silicate to nine quarts of water 

 boiled and cooled. Place in a five-gallon crock or jar. This 



will be sufficient to preserve 

 fifteen dozen eggs and will be a 

 guide as to the quantity needed 

 for a larger amount of eggs. 



First, select a five- gallon 

 crock or galvanized can and 

 clean it thoroughly, scald it, 

 and allow it to dry. 



Figure 117.— A desirable and undesir- SeCOnd, heat about 10 tO 12 



tgg' a\'^hoV'n"o"?hi dgi^^houid quarts of water to the boiling 



not be preserved. p^^j^^^, ^^^ g^jj^^ j^ ^^ ^^^1 



Third, when cool, measure out 9 quarts of water, place 

 it in the crock, and add 1 quart of sodium silicate, or water 

 glass, stirring the mixture thoroughly. 



Fourth, the eggs can now be placed in the solution, being 

 very careful to allow at least 2 inches of the solution to cover 

 the top layer of the eggs. 



Fifth, place the crock containing the preserved eggs in 

 a cool dry place well covered to prevent evaporation. Two 

 or three sheets of waxed paper covered over and tied around 

 the top of the crock will answer this purpose. Should only 

 a few dozen eggs be available at any one time for preserving, 

 additional eggs can be added at later periods until the crock 





