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.
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
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.
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.
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You can't(sorry). The jello is made with coloring so if you want clear Jello try coconut Jello.
Solidify is a verb.
There are two names for the verb to solidify: - solidity, - solidness.
It is called Jello.
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