Lower pressure with bottomless portafilter?
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- Posts: 315
- Joined: 11 years ago
According to my QM, with the spouted portafilter I see 9 bar at the group, but with the bottomless only 8.5 bar. I was wondering if it is normal that I'd need to tweak my grind to be finer when using a bottomless? I thought that it should be the same, but maybe the flow is 'too fast' and the spouts are hiding this and restricting the flow?
- trumz
- Posts: 359
- Joined: 10 years ago
I don't see it being any different between the two portafilters pressure wise... Even with the pf bottom and fork in place it wouldn't add any resistance to the flow. Too large of a hole.
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- Supporter ♡
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Are you using the exact same basket In both?
- cannonfodder
- Team HB
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Spouts or no spouts will not make a difference in your brew pressure. Basket, dose, beans, distribution, humidity, barometric pressure will, but there is not resistance to the spouted portafilter vs the bottomless.
Dave Stephens
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- Posts: 315
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Yes, same basket and I weigh the doses. I don't see any channeling (why I pulled out the bottomless was to check) but my distribution may still be varying. The only other thing is that I'm not doing back to back shots with the two handles so maybe it's just a dose that would have needed a tweak anyway.samuellaw178 wrote:Are you using the exact same basket In both?