LPowners.org Transparent portafilters

by Bruce Colglazier Pappas

Tije de Jong & Frans Goddijn experimented with a La Pavoni transparent portafilter (2014).

  • Tije's La Pavoni Transparent Portafilter. Inspired by Stephen Sweeney's work, Tije in Amsterdam (well known for his La Pavoni cooling fin rings) built his own TPF for his pre-millennium La Pavoni Pro. 18-JUN-2014

  • Tije's La Pavoni Transparent portafilter shots. Tije made a transparent portafilter for his pre-millennium La Pavoni Pro and we film some of the shots. This time, none of the spectacular "puffs / eruptions" from the puck. Could have been the beans causing those. A few "puck jumps" when raising the lever quickly but no harm done. 01-JUL-2014

  • Transparent portafilter shots. Some first tests with Sweeney's Transparent Portafilter. Must try some more to 1) prevent seal popping 2) get a nicer extraction, like one normally and easily gets with the L1 and the standard portafilter setup. 01-JUL-2014

  • Tije's Transparent Portafilter - clip 1. Tije working on his Transparent Portafilter. Video clip for Frans’ blog about the procedure. 13-JUL-2014

  • Tije's Transparent Portafilter - clip 2. Tije working on his Transparent Portafilter. Video clip for Frans’ blog #2 about the procedure. 16-JUL-2014

  • Tije's Transparent Portafilter - clip 3. Tije de Jong made this Transparant Portafilter. Here are a few first extractions with it. Sometimes at the end when the pressure drops (backflush) the puck expands surprisingly. Also, it seems a firm and level tamp helps a lot to get a delicious extraction, at least in this test setup. 25-JUL-2014

  • Tije de Jong’s La Pavoni Transparent Portafilter - Frans Goddijn's blog. 25-JUL-2014

La Spaziale Spa also has some transparent portafilter videos (2012).

  • Correct Extraction. La Spaziale is presenting the most accurate and clear demonstration of what happens when you press coffee in the portafilter. This is the accurate and clear proof of a correct coffee extraction: the transparent portafilter demonstrates how the coffee powder is correctly pressed and how water can extract coffee in the right way. 25-SEP-2012

  • Wrong Extraction. La Spaziale is presenting the most accurate and clear demonstration of what happens when you press coffee in the portafilter. With this transparent portafilter you can easily see that when you incorrectly press the coffee powder, the water follows only one direction and extract coffee (and caffeine) more on a side than on the other one. 25-SEP-2012

Created 12-APR-2017 | updated 11-FEB-2023 | BCP