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(22 MB)Ogg Video (24 MB)512Kb MPEG4 (33 MB)Windows Media
This video tests the effects of ventilating an espresso portafilter. The theory is that this will break any vacuum created in the space between the inside of the portfilter and the outside of the extraction basket.This movie is part of the collection: Open Source MoviesProducer: Phil ProteauAudio/Visual: sound, colorKeywords: espresso; portafilter
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