(not a shill)
This is what it looks like, and it’s for making cold brew coffee. Some people do it with a french press, filtering bags, cheesecloth... however you decide to do it, cold brew coffee is great. Really big caffeine punch (much stronger than the typical American drip brew) and basically no acidity.
It’s better in the summertime but I’m having some now anyway. It’s also tasty with milk, but even nicer if you use cream or a Bailey’s-type liqueur. Unfortunately, I have none of those items.