Operators installing new coffee machines have to take into consideration water conditions. Treat water for taste, odor and mineral deposits with proper filtration. Regularly change water filters to prevent buildup. Also, check brew levels to determine whether there is scale on the brew tank since it will reduce the amount of water inside.
Temperature drops, constant dripping and inconsistent fill levels may indicate lime buildup on the heating elements or a need to take care of the valves that control water flow.
In terms of cleaning, the unit’s interior and exterior need wiping down on a daily basis. Also, remove coffee oils from the spray head area daily. Use a soft brush and detergent to clean the brewer plates.
If there’s a lot of scale buildup, have a service agent clear the boiler of debris, wash it with an acid-based cleaner and thoroughly flush it. Unlike residential coffee makers, commercial brewers should not be cleaned with vinegar.
Brewing temperatures, brew levels and fittings should be checked quarterly. Tanks should be inspected often for lime deposits.
With proper care and maintenance, coffee brewers can typically last from 7 to 12 years, or even as long as 25 years. If the unit is more than 10 years old and service issues are more numerous, operators may want to consider a new, updated brewer.