The siphon (list price £33) is made from heavy glass, encased in steel mesh. A rubber base protects surfaces and also prevents the siphon from slipping.
Operators can fill the siphon with up to a litre of tap water or still mineral water (to the red line) for sparkling water that will retain its fizz for several days.
If home-made fizzy water doesn’t set your pulse racing, avant-garde cocktail makers should be able to find other uses for the device, which can potentially carbonate any liquid.







