Long extraction time (3:1, under 1 min, and under 4 min for milk-based)?
Was at DAK coffee roasters in Amsterdam today and chatted with the barista.
In general I'm quite blown away by the coffee I've had there, at this point have tried 3-4 different espresso and it's some of the best I've had.
The barista was suggesting for espresso to aim for 3:1 ratio in under 1 min and to adjust based on taste from there.
For milk-based drinks he says they do a 4 min extraction, which sounds totally crazy to me.
They said that there is no such thing as "over extraction" if the beans are properly roasted.
This seems really counter to the traditional 2:1 in ~35s I read here.
In general, I know DAK does quite a light roast so you need to extract more to get the full range from it.
But can someone please explain this advice more to me? Just looking to learn.