Coffee Appreciation

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Tijmen in reply to @mmccarthy
I only make one cup per day, as I'm a recovering caffeine addict myself and my other halve doesn't drink coffee at all. So I'm afraid I won't be able to comment on its characteristics when pulling multiple shots. But I will probably be buying some cheap coffee this or next weekend to experiment with temperatures, so I'll try to see what shots in quick succession are like.

It seems the PID values are roughly where they should be. In this chart I'm still running it off the pressostat, but I'm also running the PID parallel.
1. the blue line is the input (temperature)
2. red line is the heater output (I run it full gas until 15 degrees below the setpoint, only then does the PID kick in)
3. black line is the setpoint (roughly as I added it in Photoshop).

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salad in reply to @Tijmen

I only make one cup per day

Wow, that's quite some dedication going through all this faff for on cup a day.

May be a dumb question, but if it's just for one cup can't you just set a timer for x seconds when you switch it on (until the machine reaches your desired temp)??

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Tijmen in reply to @salad

Ha, I suppose I could have even just glued on a thermometer to the outside of the boiler. But I like the tinkering, and I think that if I drink just one cup per day it'd better be a good one.

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