Coffee Filter
Posted on August 17th, 2010 by admin
If a coffee filter doesn’t possess enough strength, it will tear or rupture, and many of the coffee grains will collect in the coffee pot. Compatibility describes a filter medium’s resistance to degradation by heat and chemical attack; a filter that is not compatible with the liquid passing through it is likely to break down, losing strength (structural failure). Efficiency is the retention of particles in a target (size) category. The efficiency required is dictated by the particles or substances trying to be removed. A large-mesh filter may be very efficient at retaining large particles, but inefficient at retaining small particles. Capacity is the ability to “hold” previously removed particles while allowing further flow. A very efficient filter may show poor capacity, causing increased resistance to flow or other problems as it plugging up prematurely and increasing resistance or flow problems. A balance between particle capture and flow requirements must be met while ensuring integrity.