Authentication reader and a dispenser comprising the authentication reader

A cup containing material suitable for brewing a beverage, the cup being removably insertable into a brewing machine in a fixed position in which the brewed beverage is dispensed by a dispensing mechanism, the cup comprising a machine readable feature comprising an excitable fluorescent taggant on part of its external surface, the excitable fluorescent taggant being arranged to absorb light at a first wavelength and to emit light at a second different wavelength, wherein the brewing machine comprises:

• a) a location for inserting a cup containing a beverage for brewing, wherein said cup has a machine readable feature comprising an excitable fluorescent taggant on part of its external surface;
• b) a non-scanning light source positioned to illuminate the excitable fluorescent taggant when the cup is inserted into the beverage brewer in a correct orientation, the non-scanning light source having a first wavelength and the excitable fluorescent taggant being arranged to cause the excitable fluorescent taggant to absorb light at the first wavelength and to emit light at a second different wavelength;
• c) a sensor to detect light emitted by the excitable fluorescent taggant upon illumination by the non-scanning light source, wherein said sensor comprises and RGB sensor with an added filter that filters out visible light from the non-scanning light source that is reflected or scattered;
• d) a control circuit to receive a signal that is indicative of one or more of the wavelength, a shape thereof, and a wavelength shift thereof of the detected light from the sensor, compare the signal with stored data to determine whether the signal indicative of the detected light corresponds to that of an authentic cup, and prevent the beverage brewer from brewing a beverage unless the cup is authentic;
• and
• e) a dispensing mechanism for dispensing the brewed beverage;
• and wherein, the excitable fluorescent taggant that comprises the machine readable feature comprises two or more excitable fluorescent taggants having different characteristic excitation patterns;
• and the excitable fluorescent taggant is a printing ink formulation.