A timer system for monitoring the freshness of a beverage in a number of carafes, and a method of use are disclosed. The timer system comprises a number of matched pairs of timers and signalling devices, with each timer being actuated individually and each signalling device being controlled by its matched timer to issue a signal after a preset period of time. A housing mountable on a beverage preparation device houses the timers. Tags are mounted to carafes to create a number of matched carafes that correspond to the matched pairs of timers and signalling devices. After the beverage in a matched carafe is prepared, the matched timer is activated. After the timer has operated for a preset period of time, the matched signalling device then issues a signal, permitting the monitoring of the freshness of the beverage in the matched carafe.

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