: Why does chewing gum sometimes change its texture Although this is more a general food related question, I wonder why chewing gum sometimes changes its texture and looses its chewy quality?

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I think it has something to do with the type of hydrocolloid that is being used in the specific gum you are chewing. Most are pretty stable but also need a specific combination of pH, moisture, and temperature to stay within their desired texture range. A comprehensive understanding of the different types of hydrocolloids can be found here:
blog.khymos.org/recipe-collection/