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| | Espresso Machine Porta-Filter |
 | | Pre-heating the porta-filter can be done using the hot water nozzle or water from the group head itself. |
 | | After one day of not cleaning the porta-filter coffee oils will accumulate, go rancid, turn fl, and ruin any shot your prepare. |
 | | If you have never cleaned your porta-filter before, place it upside down in a milk pitcher, fill the pitcher with water covering only the metal, add a couple teaspoons of TSP, and boil the water using the steam wand. |
| www.coffeeresearch.org /espresso/portafilter.htm (364 words) |
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