Short extraction time and early blonding.
-
- Posts: 104
- Joined: 16 years ago
Having some issues with my Silvia, extraction seems a bit uneven despite my breaking up the grounds using WDT. I'm also seeing blonding earlier in the extraction resulting in a shorter extraction time. The end results are fine frankly, but they can be better. But I'm not sure what to look at. Should I try a finer grind?
-
- Posts: 557
- Joined: 8 years ago
What's your dosage and output? Also, do you single dose or fill the hopper?
-
- Posts: 104
- Joined: 16 years ago
Using a 21g basket, filled by weight. My scale wont go high enough to measure the output unfortunately. It dislikes the weight of the glass. However I have a timer on the PID (meCoffee) and I'm cutting off at about the half way point most of the time.
- MB
- Posts: 792
- Joined: 10 years ago
Yes, try grinding finer. That was my reaction before I opened the thread.
LMWDP #472
-
- Posts: 557
- Joined: 8 years ago
Not sure what you mean by cutting off at about the half way point. I was trying to see how long your extraction is. Definitely grind finer so you wanna reduce your dosage to compensate or even extract longer.Kujako wrote: However I have a timer on the PID (meCoffee) and I'm cutting off at about the half way point most of the time.
-
- Posts: 104
- Joined: 16 years ago
Extraction time is around 15-20 seconds.
-
- Posts: 557
- Joined: 8 years ago
Sounds short to me. You may wanna go for 25 to 35 seconds and grind finer and then take it from there
-
- Posts: 104
- Joined: 16 years ago
That's what I was saying, my goal is 35-40 seconds, but by half of that I'm getting mostly water out. Will try going a few turns finer on the grind and see what difference that makes.
-
- Posts: 557
- Joined: 8 years ago
Also at some point you will need a scale. It's extremely important to know your yield/output ratio so if you use 21 gm of coffee and your output is 42 gm then you know 2:1. Different coffees can have different ratios recommended by the roaster.