If you must add the pressure gauge, I suggest that you place it after the pump, and before the group-head, (obviously by opening the machine). thats how I did it. However the presure gauge started liking about a week later due to the "vibrations" in the water. Maybe a "glycol" gauge would have survived more, either way, I decided to "drop" the pressure experiment because I realized water-temperature is far more important!
I think the idea behind the protafilter guage/tests is to make sure you set the OPV to bleed off anything over 9 bars so that you can perfect the human variables, ie getting 2oz in 25 seconds having the right grind and correct tamp. Once the protafilter pressure is set and you know you have the correct grind and tamp, this setup would verify that. But so would getting 2oz in 25 seconds.
Usually for single boiler machines, I thought hot water flows EITHER through the brew group (when making espresso), or through the steam wand (for making tea for example) via the respective button etc.. But this video shows hot water flowing through both at the same time? Am I missing something? If anyone knows how this is possible please comment.
OK- I had a look inside a gaggia, and it uses a copper tube for the steam, hence this gauge-connection is OK! ... however I would not recomend it for other cheap machines, due to the use of silicon tube described earlier ! :-)
As Luca Bazzera testifies in this video m.th-cam.com/video/E4y4-E2aL3U/w-d-xo.html you have to compensate the low Fluss rate with a high pressure. I would say that this Wang gauge could be a very nice way to check if the pump of your machine is running correctly
I suggest that you place a cheap digital food thermometer (used for turkeys etc) somewhere on/in the group and start "reading" the water temperature, in order to improve your coffee result.
THE WAY YOU CONNECT THE GAUGE IS A MISTAKE! maybe this will work for a few days on your machine, but it will definitely NOT work on most cheap machines. If you open an espresso machine, you will see that the steam tubes are typical "silicon" tubes with spring-clips. Those are not made to hold pressure, and definitely not ~10bars. So when you "block" the steam tube, you will soon or later make the internal silicon tube "explode" with hot water inside the machine
Epic video - i just stumbled into this one... Now I am sure that my pump is broken. Thx
If you must add the pressure gauge, I suggest that you place it after the pump, and before the group-head, (obviously by opening the machine).
thats how I did it. However the presure gauge started liking about a week later due to the "vibrations" in the water. Maybe a "glycol" gauge would have survived more, either way, I decided to "drop" the pressure experiment because I realized water-temperature is far more important!
I think the idea behind the protafilter guage/tests is to make sure you set the OPV to bleed off anything over 9 bars so that you can perfect the human variables, ie getting 2oz in 25 seconds having the right grind and correct tamp. Once the protafilter pressure is set and you know you have the correct grind and tamp, this setup would verify that. But so would getting 2oz in 25 seconds.
Usually for single boiler machines, I thought hot water flows EITHER through the brew group (when making espresso), or through the steam wand (for making tea for example) via the respective button etc.. But this video shows hot water flowing through both at the same time? Am I missing something? If anyone knows how this is possible please comment.
OK- I had a look inside a gaggia, and it uses a copper tube for the steam, hence this gauge-connection is OK! ... however I would not recomend it for other cheap machines, due to the use of silicon tube described earlier ! :-)
I want to buy a old GAGGIA classic, I think it's a 2002 model, (switch are horizontale). I'm wondering if anyone have some advise?
Thanks
As Luca Bazzera testifies in this video m.th-cam.com/video/E4y4-E2aL3U/w-d-xo.html you have to compensate the low Fluss rate with a high pressure. I would say that this Wang gauge could be a very nice way to check if the pump of your machine is running correctly
I suggest that you place a cheap digital food thermometer (used for turkeys etc) somewhere on/in the group and start "reading" the water temperature, in order to improve your coffee result.
THE WAY YOU CONNECT THE GAUGE IS A MISTAKE!
maybe this will work for a few days on your machine, but it will definitely NOT work on most cheap machines. If you open an espresso machine, you will see that the steam tubes are typical "silicon" tubes with spring-clips. Those are not made to hold pressure, and definitely not ~10bars. So when you "block" the steam tube, you will soon or later make the internal silicon tube "explode" with hot water inside the machine