ASTM F2990-12

5.1 The measured maximum energy input rate is used to confirm that the coffee brewer is operating in accordance with its nameplate rating.

5.2 If applicable and accessible, the boiler or internal tank temperature is measured to ensure that the water is maintained at a ready-to-brew temperature. This can also be used later to normalize coffee brewer energy consumption to a standard temperature.

5.3 The Preheat Test can be used to gauge the amount of time and energy required for the coffee brewer to reach a ready-to-brew state from the ambient room and incoming water temperatures.

5.4 Ready-to-Brew and Energy Save Mode energy can be used by end users to estimate the amount of energy consumed while coffee is not being brewed.

5.5 Heavy-use energy consumption can be used to estimate how much energy is consumed by the coffee brewer when brewing coffee. Along with preheat and ready-to-brew (standby) energy, this value can be used by end users to model their machine energy use.

5.6 Production capacity is a calculated measure, determined through testing, to define the performance of the coffee brewer. End users can use this value to specify a brewer that matches their production needs.

1.1 This test method covers the evaluation of the energy consumption, brewing, and holding performance of commercial coffee brewing machines (here after referred to as coffee brewers) used in commercial and institutional facilities. The operator can use this evaluation to select a coffee brewer and characterize its energy use and performance. This test method does not cover residential coffee brewers, “urn” coffee brewers (1.2 This test method applies to single cup (1.2.1 Maximum energy input rate,

1.2.2 Heavy use brewing energy consumption,

1.2.3 Production capacity,

1.2.4 “Ready-to-Brew” (Standby/Idle) energy rate, and

1.2.5 “Energy Save Mode” (Low power) energy rate.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.