What needs to be clarified
Check whether successive temperature differences recur, separate cup and machine preheating effects, and examine signs of heater-system deviation in the selected mode of this model.
Materials to prepare
- Machine with original temperature and beverage settings
- Identical cups, model instructions and maintenance information
- Rinsing, serving volume and initial cup and water temperatures
What to compare
Dispense after normal readiness into identically prepared cups. Record volume, measurement delay and sensor position; separately compare outlet and cup temperatures using a suitable method. Change cup preheating in a separate stage. Clean or adjust only after recording the initial state, distinguishing those effects from restarting.
Possible outcome of the analysis
A successive-measurement record may assess cup preparation, consistency and grounds for further diagnosis of the examined machine’s heater, sensor or controls.
Limits of the conclusions
Cup temperature is not heater temperature. One programme’s result does not extend to milk drinks; the test cannot establish how long a possible operating deviation has existed.