Coffee Appreciation

i made a milky drink this morning with my shiny new jug. did the milk first then whizzed some water water through the head then refitted the portafilter and made a shot.
is there a specific order you should do it in? coffee came through a bit quick as if there was more pressure there because of making steam?

i guess i'm doing it wrong

Gaggia Classic?

On a single boiler machine you boost the element to get up to steaming pressure, the water is somewhere around 120*c. If you do this first you then need to wait for the boiler to cool back down to brewing temperature (switch back to brew mode then wait for boiler light to come on). There's a possibility, if you don't wait, that this may cause some increased inlet pressure on the pump, but probably not enough to make a difference.

More likely is the hotter water, aswell as scalding the coffee and bringing out the thin bitter ashy flavours, is a better solvent and causing the coffee to extract faster.

Maybe do the milk first, then take it out of steam mode and open the steam tap to let out the pressure. That should get you down to brew temp a bit quicker. Make sure you see that boiler light before you start brewing, that means the pressurestat is at the bottom of its temp cycle and you're not going to burn your coffee.

I'm stabbing in the dark a bit, I don't have a lot of experience of these machines. I had a Silvia in the kitchen for a while and I always used to pull the shots before steaming the milk because I didn't want the milk to die, plus with the milk being the major part of the drink it's good not to let it cool down too much.