Siphon brewing is as much theater as it is coffee making. The vacuum action, the dance of water and grounds—it's a ritual that slows you down and makes you pay attention. That's why collectors love it: it turns a daily cup into an event.

What does siphon do to a medium roast? It extracts a surprising amount of sweetness and clarity. Because the water is heated and then mixed with grounds at a stable temperature, you get a clean, full-bodied cup without the sediment you might find in a French press. The siphon also tends to highlight the roast's natural sugars, so you'll notice caramel or toffee notes more than you would with a standard pour-over.

The catch? Siphon takes practice. You're dealing with a cloth or paper filter, a burner, and a glass vessel. If you're not careful, you can scald the coffee or end up with a weak brew. But that's part of the appeal for collectors—it's a skill to master.