Here's why:
* Gel Structure: Jelly is made up of a network of molecules, like pectin, that trap liquid.
* Melting vs. Dissolving: As jelly heats up, the molecules within the network begin to vibrate faster. This weakens the bonds holding the gel structure together, and the jelly becomes more liquid.
* Gradual Transition: It's a gradual transition, not a distinct melting point like with a solid. The jelly will eventually become completely liquid, but it's a process of the gel structure breaking down, not a solid melting.
Instead of a melting point, you could think of:
* Setting temperature: The temperature at which the jelly solidifies. This is determined by the pectin concentration and other factors.
* Gelation range: The range of temperatures where the jelly is semi-solid.
So, while jelly doesn't have a melting point, it does have a range of temperatures where it undergoes a transformation from a solid-like gel to a liquid state.