ELI5: Explain Like I'm 5

Blotting paper coffee filter

Have you ever seen a coffee maker? It's a machine that helps make coffee by mixing hot water with coffee powder. But before you can drink the coffee, you need to separate the coffee powder from the liquid coffee. That's where the blotting paper coffee filter comes in!

Imagine you have a cup of muddy water. If you pour it through a special paper, the paper will act like a net, catching all the mud while allowing the clean water to pass through. That's exactly what the blotting paper coffee filter does. It's like a net made of paper that catches all the coffee powder while letting the delicious coffee liquid pass through.

The filter is made from special porous paper. Porous means it has tiny holes or spaces in it. When you pour the mixture of hot water and coffee into the filter, the liquid can go through those tiny holes, like little tunnels, and come out clean on the other side. But the coffee powder particles are too big to fit through the holes, so they get trapped in the paper.

Once the liquid is filtered, you will have a clear, coffee-flavored liquid on one side of the filter, and all of the coffee powder stuck in the paper on the other side. You can then remove the paper with the trapped coffee powder and throw it away.

So, in simple words, the blotting paper coffee filter helps separate the coffee powder from the drinkable coffee liquid by letting the liquid go through the paper but not the powder. It's like a special net that catches all the coffee powder and gives you a nice cup of tasty coffee to enjoy!