Timeline for Should any coffee be extracted during pre-infusion?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 12, 2019 at 7:17 | comment | added | MTSan | Pre-infusion time/volume has been discussed a few times before. Please see these: 1, 2, 3. | |
| Jul 12, 2019 at 3:55 | comment | added | JJJ♦ | @JasonMcCarrell ah I see, the razor goes into the basket itself at a fixed level. As for the flow rate MTSan mentions, I wouldn't stick to that too strongly. A 1:1 (all based on mass) is a ristretto (less bitter) and a 1:3 is a lungo. All three have their pros and cons and it's easier to adjust based on how you like the taste of the result. I'll try to write an answer with a few more factors and by playing with it you develop more of a feel of when it's good or just sufficient and how those factors impact the taste in your case. | |
| Jul 11, 2019 at 17:00 | comment | added | Sophie McCarrell | @MTSan should i expect 1ml per second even during pre-infusion? JJJ: The Breville instruction booklet instructs to use the razor AFTER tamping, to level it out. If it was done before tamping, then there's no chance there's be enough grounds in the porta filter (it would be way too short) | |
| Jul 11, 2019 at 11:44 | comment | added | MTSan | @JasonMcCarrell, as a rule of thumb, you should expect 1 ml per second. So, for a standard cup of espresso, it should take 30 seconds and your cup must be filled up to 30 ml. If this is less, it is very probably the tamp is so tight. If this is more, very probably the tamp is so loose. | |
| Jul 11, 2019 at 3:28 | comment | added | JJJ♦ | @JasonMcCarrell beans certainly play a role, especially if you don't adjust your grind size after switching beans. As for the razor, I'm not sure, but I think it's meant to level it before tamping. After tamping, there should be some room between the coffee and the top of the portafilter. Otherwise, your tamp would touch the shower screen when inserting, probably messing up the tamp again. | |
| Jul 10, 2019 at 13:58 | comment | added | Sophie McCarrell | It's manual and I always overfill the portafilter a bit, so after I tamp I can use the razor to ensure it's even. The beans are new, but would beans cause such a dramatic amount of water to go through during preinfusion? Like 1/3rd of the liquid of the shot goes through during pre-infusion, is it normal for that much water to be dispensed during that period? | |
| Jul 10, 2019 at 7:34 | history | answered | MTSan | CC BY-SA 4.0 |