This glass Verse-Eau (water pourer in French) is a single server used to slowly add water (and optional sugar) to absinthe. It is a reproduction of a glass brouilleur found in the late 19th century, which are highly sought after by collectors and difficult to find.
A dose of absinthe is first poured into the glass and the glass Verse-Eau is placed on top of the glass. Ice is then placed inside the glass Verse-Eau and water is slowly poured over the ice from a carafe or pitcher. The ice water will begin to stream through a small hole located at its bottom into the absinthe below.
Hole at the bottom of the Verse-Eau may vary from one piece to another, as they are each mouth-blown. Each hole is hand drilled using a diamond bit.
To use with sugar, place a cube (or stacked cubes) over the hole before the ice and water is added. The stream will slow as the sugar may slow the water flow. As the sugar begins to dissolve into the water, the sugar water begins to stream into the glass of absinthe.
It is not suggested to completely fill the Verse-Eau with water. Doing so could quickly overfill the glass, or add too much water for your liking. The preferred method for use is to pour small amounts of water into the piece, in increments. This way the absinthe can be tasted and adjusted, before too much water is added.