Coffee must be really hot! And it's best when hand-filtered. That's why the enjoyment specialists at cilio have equipped their professional coffee filters with a longer spout. This allows them to fit common thermal carafes and bottles. The attachment does not tip or slip – a support ring provides additional stability. The coffee stays hot, even when your friend, who just wanted to stop by for a quick coffee, starts chatting. At a picnic, you'll be well-supplied with aromatic coffee, and on your way to vacation, you can skip the rest area. The filters are available in two versions. One model is made of thick-walled ceramic, fired at around 1,300°C, while the other is made of acrylic and includes a practical coffee measuring scoop. Both attachments fit paper filters size 4.