You have a 9 gram dose for about a 44g single espresso, which is nearly a 1:5 ratio. is that correct? Is that a light roast coffee? Whereabouts is your café - I'd like to try the coffee. Thanks for the video.
Thank you very much for your answer, but I have another question, do we need to use paper filters? If we don't use it, will the quality of the coffee deteriorate?
there's no *need* for paper filters with the robot. really they just make it easier to clean up after your shot. but the robot works fine without them if you just use the included metal screen (as the person in this video does). a paper filter on top doesn't impact the taste of the coffee. the paper filter does make it easier to use the "overflow method" for preheating, though, if that's your thing. but that isn't required either.
The machine is nice, but can't we take longer shots, for example at least 80 ml? As far as I understand, we cannot make double espresso with this machine. Also, is the temperature of the coffee produced sufficient?
You can definitely do a standard 2 oz double espresso. I've never tried to go much above that, but I always have some water left over after I cut off the shot. I haven't had any temperature problems--the espresso is delicious. If you want to get really in-depth about temperature management, there are threads with data on the home-barista forum that you can find by searching "cafelat robot temperature graph." Some people go crazy with that stuff, but I just use the extremely simple "overflow method," which works great if you use a paper filter on top of the cafe. A paper filter on top is recommended anyway because it makes the machine easier to clean when you're done...
