According to Query 39 Health Network, the long hair of sucrose solution indicates that it has been polluted, which may be caused by bacteria or other microorganisms. These microorganisms will decompose sucrose and make it deteriorate, which is harmful to health.
If the sucrose solution has long hair, it should be discarded immediately, and the utensils that come into contact with the sucrose solution should be cleaned to avoid polluting other items again.