The main characteristics of jelly candy are transparent appearance, smooth appearance, soft, sticky, and elastic mouthfeel; the physical state system is a relatively stable colloidal dispersion system; the water content is relatively high. Representative varieties of jelly candies include modified starch gums, gelatin gums, carrageenans, agar gums, pectin gums, and gum gums.
Judging from the main characteristics of gummy candies, they can be regarded as a kind of gel containing sugar solution. The formation of the gel depends on the hydration of the gel. Therefore, the manufacture of gel candies must use hydrophilic colloids.
The common quality changes of jelly candies include the phenomenon of tanning, dehydration and shrinkage, and mildew bacterial contamination.
