Jump to content
AlanB1976

Does speed of water or timing influence extraction

Recommended Posts

Hi all

Got a question around extraction times. If I pull a great shot over 30s at 1:2, the grind has been in contact with water for those 30s, which has produced that flavour. If that shot happened to be way to course (just for example sake) and over that 30s I ended up with a ratio of 1:4, ignoring that the result would be weaker, surely the flavour profile would be the same as the grind has been in contact with water over the exact same time?

So, again, just for example, if I had an americano with the first good shot and one with the other, wouldn't the americano's taste the same as I just end up putting less water in the second to result in the overall americano volume? But they don't.... why is that?

 

Share this post


Link to post
Share on other sites
Posted (edited)

If you pulled a great shot at 1:2, it was because you got the grind setting right & didn't screw up the prep (inconsistent weight in basket, bad distribution in PF, sloppy non level tamp etc).

The shot would take as long as it took for your 1:2 ratio to happen at that grind. The time would be different if you changed beans, but extraction might not vary much.

Same goes for 1:4 but you would likely grind a little coarser, because a grind that worked well at 1:2 would likely make a1:4 shot a little silty.

Time does not drive coffee extraction to the extent you are implying. The coffee is not in contact with the water for 30s anyway. The puck will only hold a little over it's own weight in water. So, foe 1:2 the coffee & water were only in contact, on average, for half the shot time as the liquid in the puck was exchanged about twice, in a 1:4 shot it is exchanged 4 times.

How do you know that you extracted the 2 shots the same (time can't tell you that)? How do you know you had the same strength between the 2 (was one weake than the other)?

I drink the same coffee via filter & espresso, the basic profile is usually very similar, but rarely do 2 cups taste exactly the same...that's to be expected.

How much weight in the cup is your Americano?

 

 

 

Edited by MWJB
  • Like 1

“Coffee evokes the most insane reactions in people”, Rene Redzepi.

 

https://markwjburness.wordpress.com/

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • About:

    Coffee Forums UK is the UK's premier coffee forum Started in June 2008 by Glenn Watson, we now have more than 22000 mainly UK based members, and welcome more than 3000 members and visitors from around the world each day! With strategic investment and digital expertise from the Jackson Lockhart team (Tait Pollack and Adam Bateman), we are taking Coffee Forums UK to the next level, and are delighted to share the journey with you.

    New Members:

    We are often referred to as the friendliest forum on the web and we look forward to welcoming you onboard.

    Terms of Use

    Advertising

    Coffee Forums Media Kit

    Buy Advertising Space

    Donate

    Get Your Supporter Badge (per year)

×
×
  • Create New...