I have a light roast that I've been pre-infusing for 15 seconds, then ramping to 9 bar for an extended extraction. It surprisingly tastes great, but I'm wary of repeating the recipe due to the extended duration of stress on the pump. I have an ECM Classika which has a vibe pump and I've read that it's not great to run it longer than 60 seconds. So that's basically my question - Is running my vibe pump longer than 60 seconds problematic?
Correspondingly, if it is, then what about backflushing? I backflush in 10 second intervals; 10 on, 10 off, 10 on (etc...). I do this 5 times with cleaning powder, then 5 consecutive times without the powder. So, if the above 75 second pull is an issue, is my backflushing also problematic?
Need help with equipment usage or want to share your latest discovery?
This is very helpful. Thanks Jeff!!