For years I've *thought* I've been making double shot ristrettos on my LeLit Anita combi - 18g, 30 sec pour from turning on the pump, 30ml coffee (then steamed milk). That's a 1:1.66 ratio which is in ristretto range according to La Marzocco (1:1 - 1:2) but just outside according to Google (1:1 - 1:1.5). Was generally happy with the taste.
Today I started doing a little research and found what seems to be the consensus that a double shot should be 60ml in around 30 seconds... so a 30ml ristretto should actually be more like a 15 sec pour. So have I been horribly over-extracting the coffee all this time? Is my assessment correct?
I dialled back to coarser grind settings, put a little more in the basket (19g) and experimented till I got 60ml in 30 seconds, timing the pour not from when the pump started but from when extraction began. Result had less crema but tasted okay and clearly had more caffeine than I'm used to for the first of the day.
On a couple of other forums I found complete disagreement on when timing should start. 30 sec from turning on the pump seems to be the guide stemming from commercial rotary pump machines which will start extraction in 3 seconds or so, whereas home vibration pumps take around 7 sec, which is why I changed to timing from first coffee appearing. What's the feeling here for a vibration pump?
Today I started doing a little research and found what seems to be the consensus that a double shot should be 60ml in around 30 seconds... so a 30ml ristretto should actually be more like a 15 sec pour. So have I been horribly over-extracting the coffee all this time? Is my assessment correct?
I dialled back to coarser grind settings, put a little more in the basket (19g) and experimented till I got 60ml in 30 seconds, timing the pour not from when the pump started but from when extraction began. Result had less crema but tasted okay and clearly had more caffeine than I'm used to for the first of the day.
On a couple of other forums I found complete disagreement on when timing should start. 30 sec from turning on the pump seems to be the guide stemming from commercial rotary pump machines which will start extraction in 3 seconds or so, whereas home vibration pumps take around 7 sec, which is why I changed to timing from first coffee appearing. What's the feeling here for a vibration pump?

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