ELI5: Explain Like I'm 5

Supercritical fluid extraction

Supercritical fluid extraction or SCFE is a fancy way of getting the good stuff out of things like plant materials, spices or even plastics. It’s like taking the best bits out of a toy with a fancy tool.

Think of it like making hot cocoa. You take some milk and add cocoa powder to it. You stir and stir until the cocoa powder dissolves into the milk. Now, if you wanted to take the cocoa powder out of the milk, you could use a strainer. But what if you wanted to keep the cocoa flavor in the milk and get rid of the powder? That’s where SCFE comes into play.

Supercritical fluid is a fancy term for a special type of liquid that is created when you squeeze a gas (like CO2) really hard. This supercritical fluid has properties of both a liquid and a gas. It’s special because it can dissolve things that regular liquids can’t.

To use SCFE, you need a special tool called an extractor that can make the gas turn into a supercritical fluid. The supercritical fluid is then used to dissolve the good stuff from the plant materials, spices or plastics. The supercritical fluid then carries the good stuff to a collection container where it is collected.

This process is pretty cool because it’s very precise. You can control things like temperature and pressure and only get the parts you want. That’s why it’s used to make things like essential oils and food flavorings.

So, to sum it up, SCFE is a way to get the best parts out of things using a super fancy tool that makes a special liquid that can dissolve things.
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