How long does it take for jello to partially set?

It's difficult to give an exact time for jello to partially set because there are many factors that affect setting time, including:

* Temperature: Colder temperatures will slow down setting, while warmer temperatures will speed it up.

* Jello Flavor: Some jello flavors set faster than others.

* Amount of Jello: More jello will take longer to set than less jello.

* Altitude: Higher altitudes affect setting time.

Generally, it takes about 30-45 minutes for jello to reach a partially set state, where it's still jiggly but firm enough to hold its shape. You can test it by gently pressing on the surface. If it bounces back slightly and doesn't wobble too much, it's partially set.

For a firmer set, you can leave it in the refrigerator for longer. However, if you plan to add whipped cream or fruit, it's best to let it set for a shorter time so the toppings don't sink to the bottom.