Jello will set in room temp although Jello will set faster and be firmer when it's allowed to set in the refrigerator.
The refrigerator allows the Jello to also remain and maintain it's shape and prevent spoilage and chilled Jello tastes better as well.
Jellos setting is primarily a result of the gelatin which is a protein that comes from animal bones and skin that forms a network of molecules which trap water and create a gel like structure.
Jello can be reset and turn back to liquid when it's melted and heated and then when cooled turned back to a solid.
When Jello which is made of Gelatin is heated it will return to a liquid state and then when cooled down again it will solidify again.
The structure of Jello relies on a protein called gelatin which forms a 3D network when cold that gives it the shape.
Gelatin also has a relatively low melting point so it will become a liquid again when heated.
And you can reheat Jello but it's best to avoid boiling the Jello as it can cause the gelatin to break down.
When heated the gelatin network temporarily breaks down and allows the Jello to become liquid, but when the Jello cools down, the gelatin network reforms again and the Jello then solidifies again.
Jello is made out of gelatin which is a protein that comes from animal collagen that is extracted from the bones, skin and connective tissues of animals.
Most often the gelatin protein that is extracted from the animals comes from pigs or cows and is an odorless and colorless substance which forms a gel when it's dissolved in water.
Jello also contains sugar, food coloring's and artificial flavorings.
However there are some plant based varieties of Jello that use plant based gelling agents which vegetarians can eat.
Normal Jello made from animals is not vegetarian.
Jello is good for eating as a snack or dessert along with other foods.
Jello is also good for providing you with protein, supporting joint health, aiding in digestion, improving skin elasticity, keeping your hydrated and helping to soothe upset stomachs and promote healthy digestion.
Jello contains collagen which is important for skin health and Jello can help improve joint health by providing the body with building blocks for collagen which is the main protein in cartilage and can even benefit people with conditions such as osteoarthritis.
The reason why Jello was so popular is because Jello is very convenient and affordable and easy to make.
Jello allows you to easily create visually appealing desserts and even salads with little effort which was also great during the Great Depression when it was crucial that you stretched ingredients.
Jello was also an easy and cheap addition to other labor intensive or expensive recipes during World War II and the Great Depression.
The release of lime flavored Jell O during the Great Depression also heightened Jellos popularity.
Jell-O was first trademarked in 1897 and began it's rise in popularity with the introduction in 1904 of the prophetic slogan of "America's Most Famous Dessert."
Hospitals also serve Jello because Jello is easy to digest and swallow.
Because Jello is easy to digest and swallow it makes the Jello great for patients that have difficulty in eating solid foods and for patients that are recovering from surgery.
Jello has a smooth texture and a mild flavor and is often well tolerated by people who even have sensitive stomachs.
Jello is also high in water content which makes the Jello hydrating as well.
The Jellos Gelatin is also easily broken down by the body and makes it a great food option for people with digestive issues.
And Jello is mostly water which also helps to keep you hydrated and especially for people that may not be able to drink large amounts of fluids.
Jello also has a simple flavor and is less likely to trigger nausea in people when compared to foods that are stronger.
Jellos smooth texture and consistency makes it easy to swallow, especially if you have difficulty chewing and swallowing.
Even when you're sick with the flu or a cold or other illness the Jello is a good food option to provide you with hydration and help you recover faster.