Glow in the dark and glow stick effects have been outdated long ago! Brewing coffee in the syphon technica is the new thing since it is a much more beautiful eyecatcher. And it is even more than that! For all who haven't tried: coffee prepared in the syphon tastes amazing and crispy clear!
Available here: coffeecircle.com/syphon-technica-vakkum-kaffeebereiter