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Stiffness, Hardness, toughness, stringiness
Chewed Gums vs. Unchewed Gums
Many gum manufacturers release products that claim they are long lasting. Two factors usually make up the duration gum is normally chewed, flavor and hardness. Chewing gum usually softens as it is first chewed and after a long period of time it can begin to harden and the flavor wears off. This application study presents a method to test the physical characteristics of gum before it has been chewed and after it has been chewed two different durations.