Gelatin is a reversible colloid, so yes, if you melt a set jello, it should set again when chilled. However, other ingredients, such as pineapple, may alter the gelatin so that it does not set.
The jello may not have set properly due to not using enough gelatin or not allowing enough time for it to chill and solidify. Other factors like temperature or adding certain fruits can also affect the setting process.
Jello does not solidify properly when mixed with fresh pineapple juice because it contains bromelain, an enzyme that breaks down the proteins in gelatin, preventing it from setting. However, canned pineapple juice is safe to use because the canning process deactivates the enzyme. Additionally, the acidity of pineapple juice does not interfere with gelatin setting, but it's the bromelain that is the primary concern. If you want to use fresh pineapple, you can heat it to deactivate the enzyme before mixing it with Jello.
You have to cook the pineapple first. Jello won't solidify if you add fresh pineapple.Because pineapples contain proteases, enzymes that break down proteins. Since jello mixes are mostly made of collagen from animal parts, or proteins, pineapples break them down to their simplest forms. When you boil pineapple, it denatures the protease and you should be able to make pineapple jello then.
jello is in jello!hahahahahaha
Well, Jello is used in Jello shooters, but that is not specifically teens who make and drink Jello shooters. Jello is the most abused drug by teens and most deaths come from Jello.
Pineapples are actually reasonably solid. The question may mean, "Why can't you make fresh pineapple jello?" Enzymes in the pineapple prevent protein molecules from "setting up" into the (semi)solid gelatin.
jello
You can't(sorry). The jello is made with coloring so if you want clear Jello try coconut Jello.
It is called Jello.
jello
yes