The eggs used must always be absolutely fresh. Clean all eggs carefully with cloth dampened in vinegar. Never pack dirty eggs, under any circumstances. Do not pack eggs that float.
WATER GLASS METHOD – 1 quart Sodium Silicate (Water Glass) to 9 quarts water that has been rendered absolutely sterile by boiling and then cooled. Place mixture in 5 gallon crock or jar, which has been thoroughly cleaned and scalded. This is sufficient for 15 dozen eggs. Larger amounts in proportion.
Allow 2 inches of solution to cover eggs. Place jar in a cool, dry place. Jars should be well covered to prevent evaporations. Waxed paper covering tied around top will answer. Do not use same Water Glass solution twice.
When boiling preserved eggs make small hole with pin at large end to allow air to escape when heated, to prevent cracking.
Eggs when properly packed by this method will keep from 8 to 12 months.