Raisins are simply dried grapes.
Grapes are dried for raisins in the sun or by stove heat. Those dried in the sun - called raisins of the sun - are thought much the best. The common raisins dried in stoves are often very dirty and mixed with much refuse matter. The Sultana is a stoneless raisin - very good in puddings.
There are Muscatels, Smyrna, Valencia, Eleme raisins, and the Sultanas already named.
Constituent parts of the grape in 1 lb.
Glucose or Grape-sugar
Tartaric Acid . . .