Ok my results. An this is with the rubber plug that came with the machine not a blind filter. Unit is set to 10 bar. Done both empty and full of water. Sorry no blind filter, So I hope this helps.
Single basket 12.6 sec .(empty) 11.6 sec. (full) Double basket 14.3 sec. (empty) 11.6 sec. (full) VST 18g basket 14.5 sec. (empty) 12.0 sec. (full) Triple basket 17.7 sec. (empty) 12.3 sec. (full) Note: could never get triple basket to not leak a little with rubber plug so doubt that is any use for times. When I make espresso, I always use the VST basket with 18 grams of coffee, I grind very fine, with a very light tamp. Around 10 lbs. I use a naked portafilter and I see the beads of coffee start around 8-11 secs. I get my 2 oz. at around 8.5 bar in about 28-30 secs. An on a final note over pre infusion, take a look at this video. http://www.youtube.com/watch?v=K93RLmGkps4 Good luck John On Mar 24, 2:18 am, guido <[email protected]> wrote: > hello, > > i noticed something in another thread, while trying to find out what is > wrong with my brewtus (or me, operating it) and i noticed something > peculiar. > > my brewtus iv vibrational pump machine is very slow in building up pressure. > > i watched a number of youtube videos of people making espresso with the > brewtus, and the coffee always starts dripping within 4-8 seconds. > > i measured my machine, with a blind filter. it takes 11 second for the > pump to reach full pressure (about 9.5 bar with the blind portafilter). > that's about the same time when the espresso starts flowing with coffee > in the filter. > > what i would like is for other people, with the same machine (brewtus iv > vibrational pump) to repeat this test with the blind filter for me and > give me the resulting time. this could help me a lot. > > i could be on the wrong trail, or i could be dealing with a faulty pump. > the answer is hopefully in your replies. > > another thing i would like to know, is there any way on this machine to > shorten pre-infusion time? i've learned a bit about pre-infusion from my > la pavoni manual lever, and 8-11 seconds seems very long time. with my > lever machine, about 5-8 seconds would be right. most other machines > seem to take this same amount of time for the first drops to appear. > > this could be the answer to a problem i have been struggling with for > months. or not. it depends on your answers. > > so, please, be so kind and test it for me. i would appreciate it very, > very much! > > thanks and have a great weekend everybody, > guido. -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/brewtus?hl=en.
