It is next passed to the cooking department and placed in huge steam-jacketed kettles, which revolve continually and thus keep the chicle from scorching. 佚名.神奇的知识之书.
These chunks are then run through grinding machines, which reduce the chicle to a coarse meal. 佚名.神奇的知识之书.
The bulk of the crude chicle manufactured is shipped in blocks to Canada, where it is further evaporated and carefully refined prior to importation into the United States. 佚名.神奇的知识之书.
During the process of filtration the chicle is also sterilized, and comes from the machine as pure as distilled water. 佚名.神奇的知识之书.
Though its employment in the manufacture of chewing gum is of comparatively recent date, chicle was used by the Indians prior to the days of Columbus as a means of quenching their thirst. 佚名.神奇的知识之书.
When the chicle arrives at one of the chewing-gum factories it is immediately turned over to the grinding department. 佚名.神奇的知识之书.
In 1885 the United States imported 929,959 pounds of chicle. 佚名.神奇的知识之书.
This machine has practically solved the perplexing problem of separating impurities and foreign substances from chicle. 佚名.神奇的知识之书.
Sometimes this breaking and grinding is done in Mexico, but the duty on ground dried chicle is five cents per pound more than upon cube chicle. 佚名.神奇的知识之书.
Later, pure white paraffin wax, variously flavored, took its place, but only in its turn to give way to the chicle now almost exclusively employed. 佚名.神奇的知识之书.
Crude chicle is obtained by simple boiling and evaporation of the milk, accompanied by frequent kneading. 佚名.神奇的知识之书.