I'lIK BULLKTI.N. 



9 



RUBBERS. 



The varioiKs types of jars are fitted with rulDber rings on wliich 

 the tops rest when in place. Eings are used to aid in sealing the 

 jars and keeping them air-tight. x\fter the contents of a jar have 

 been sterilized, it is very necessary that the jar be kept air-tight 

 in order that whatever is enclosed may remain sterile and free from 

 the action of bacteria. Do not use rubbers the second time. The 

 first season's cooking usually destroys the life or elasticity of the 

 rubber. For this reason it is important that good fresh rubbers be 

 used, as those used one season cannot be depended upon to make air- 

 tight seals the second time. In buying rubbers, as in buying jars, 

 get a good grade. 



COMMERCIAL CANNING OUTFITS. 



There are a 'number of outfits manufactured in different parts of 

 the country with which excellent work can be done both for com- 



Fk;. 4. Commercial canning outfit. 



mercial purposes and for home use. These outfits range in size 

 from those having a four 3-lb. can capacity to those having a 



