Beverage preparation device

Abstract

The invention relates to a method for preparing a beverage and to a beverage preparation device (1), such as a beverage dispenser, for simpler and more efficient sanitization of water. The beverage preparation device (1) comprises: a buffer tank (2) having a tank body for storing an amount of water, a recirculation line (20) configured to allow water circulating out of and back into the buffer tank (2) to form a recirculation path together with the buffer tank (2), a UV lamp (40) arranged for irradiating UV light at a position along the recirculation path to sanitize the water, a cooling unit (3) for cooling the water within the buffer tank (2), a discharge line (23) for discharging the water from the buffer tank (2) via a discharge outlet (24), and a pump (26) for selectively circulating water along the recirculation path or the discharge line (23) towards the discharge outlet.

Dependencies are inferred from the claim text.