News articles tagged with 'portafilter'
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That Seals It
It’s one of the most important parts of your espresso machine. It’s also the one of the simplest, cheapest, hardest working and probably the most mistreated. I’m referring to the Collar Seal, also known as the Group Seal or Group Gasket. They cost about the same as a regular burger meal yet if the collar seal fails to work exactly as designed, the shot is immediately wasted and it’s back to square one.
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