Page 2 - Sprayhead Basics Brochure

FACTORS OF SPRAYHEAD CONSIDERATION (CONTINUED) CLEANING
Any buildup on the sprayhead may restrict water flow and impact brewing. For consistently great tea and coffee, it is important to clean the sprayhead regularly. Remove and thoroughly rinse the sprayhead. Use the sprayhead cleaning tool (#38227.0000) to make sure all holes are open and clear of any mineral deposits. Upon visual inspection, it may appear that light pass through air holes, but a thin film of residue can pass light and still impede water flow.
FUNNEL AND FUNNEL TIP
The funnel type will dictate the bed diameter and depth of coffee grounds or tea leaves, which then dictates the necessary width of the spray pattern. The funnel outlet also plays a role in sprayhead selection because it regulates the flow rate out of the funnel. Especially when brewing coffee, the flow rate out of the funnel needs to keep up with the flow rate into the funnel which is regulated by the sprayhead.
UNIFORMITY OF EXTRACTION
Extraction is the amount of coffee or tea dissolved during the brewing process. Ideally, the entire grounds bed will have a consistent level of extraction throughout a cross section, without having some areas over extracted and other areas under extracted. The sprayhead is critical in achieving this, as it determines where and how the water contacts the grounds bed.
SPRAY PATTERN COVERAGE
Sprayheads
are critical to determining how and where water comes in contact with the grounds
Sprayhead
Saturated grounds in funnel
* Proper grounds saturation will provide a balanced extraction from A, B and C zones.