Tide | Borosilicate Glass Coffee Sharing Cup with Scale

A borosilicate glass sharing cup marked with a scale. The measurements up the side are there so a shared pot divides evenly, rather than by guesswork followed by apology.

Borosilicate takes hot liquid without complaint, which is why it turns up in laboratories and coffee equipment for much the same reason. The glass stays clear, so the colour of a brew is visible and can be stopped where you want it.

It sits under a filter, beside a cafetière, or on a table between two people. The scale is useful cold as well: water, iced coffee, anything where the second cup should be the same size as the first one was.