After prolonged use

replace the cartridge when the brewer alerts you or every 2 months / 60 tank refill

natural and artifical flavours

causing an audible noise known as first crack

made of steel

Bodum Bistro Double Wall 15.2 oz Latte Glass Mug, Set of 2 office coffee After prolonged useWhen form follows function, design just works. Abiding by this belief, the Bistro Double Wall Glass Line serves best if used to keep ice cold drinks cold and hot drinks hot. The Bistro family of mugs is streamlined: shaped without many edges and corners, employing a form for everyday use with the special double wall glass thermal effect. The Bistro line is made of mouth blown borosilicate glass known for its amazing insulating qualities. It is a