Bunn-O-Matic recommends deliming your coffee brewer periodically. The actual frequency of deliming depends on the mineral content of the water you use. NOTE: In hard water areas, this may need to be done daily. It will help prevent liming problems in the brewer and takes less than a minute.
Follow these simple steps:
The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment.
CLEANING OPTIONAL LARGE SPRAYHEAD
Unplug the brewer and let it cool down before proceeding. Front Wrap:
Source: MaintainX (Community Member)