YEASTS. 
4i 
sible the raised bread, or the “election cake’’ like that 
of our grandmother's time; it also produces the 
“froth” and “sparkle” of the “home-made spruce beer” 
as well as that of the large breweries. 
Yeast plants grow best from 70 0 F. to 90° F. They 
do not work well under 70 0 F. and are killed when in 
a moist state by the temperature of I30°-I50° F. No 
wonder the bread will not rise when the cook pours 
boiling or even hot water on the cake of yeast! Dead 
plants cannot; work any mQre than d^ad animals, Nq 
Favorable 
TsmperaturQ 
