Hey guys
TLDR- 120 ml extracted in 25 seconds with 3 shims installed.
I made a new thread because I've narrowed the issue down a bit more.
Can you please help me, I'm at my wits end.
I have a brand new Breville Dual Boiler and a 2 year old Breville Dose Control Pro that worked fine for me Sunbeam EM7000, and beans roasted 5 days ago dosing 18g.
On the Dose Control Pros finest setting it was still extracting 150 ml in 25 seconds (1/60 on the dial and 1/10 on the burr setting).
I found the shims I ordered ages ago and installed 2 of them as per the instructions and worked my way down through grind settings to number 1 with little difference.
I added a 3rd shim and settings 1-15 the burrs would touch. I ground on grind 15 and dosed 18g and ended up getting 120 ml in 25 seconds with 5 bars.
There is literally no way my grind could be finer, What is going on!? (20g touches the shower screen).
I'd really appreciate some help.
Video showing my technique and my grind
Highish res pictures of the burrs and I peer (impeller looks to be needing replacement soon but I don't think that affects the grind)
https://imgur.com/gallery/dNNDB9F
Thank you.
TLDR- 120 ml extracted in 25 seconds with 3 shims installed.
I made a new thread because I've narrowed the issue down a bit more.
Can you please help me, I'm at my wits end.
I have a brand new Breville Dual Boiler and a 2 year old Breville Dose Control Pro that worked fine for me Sunbeam EM7000, and beans roasted 5 days ago dosing 18g.
On the Dose Control Pros finest setting it was still extracting 150 ml in 25 seconds (1/60 on the dial and 1/10 on the burr setting).
I found the shims I ordered ages ago and installed 2 of them as per the instructions and worked my way down through grind settings to number 1 with little difference.
I added a 3rd shim and settings 1-15 the burrs would touch. I ground on grind 15 and dosed 18g and ended up getting 120 ml in 25 seconds with 5 bars.
There is literally no way my grind could be finer, What is going on!? (20g touches the shower screen).
I'd really appreciate some help.
Video showing my technique and my grind
Highish res pictures of the burrs and I peer (impeller looks to be needing replacement soon but I don't think that affects the grind)
https://imgur.com/gallery/dNNDB9F
Thank you.


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