Bluenoser wrote:I've just had my Profitec Pro 500 PID for about 3 weeks. And from all the literature it does not require cooling flushes (unless on for really long time). From my brief experience, that does seem to be true. I don't get flashing water, and shots taste pretty consistent. But I'm trying to determine if my brew water is really near 200F and am not sure how to do it.
The PID machine is slightly different than the non PID. I found for me for my shot of espresso and a 5 minute recovery time meant i needed the boiler to be set to 1.2max (1.0-1.2 Max).
With the PID machine you maybe able to get away with being a bit less than 1.2 as there is no swing of pressure/temp combo.
As for eric's thermometer i seem to find best results by:
- heatup for 45-60mins.
- quick flush stop the garbling and then prep shot, approx 5 mins.
- flush the machine until i get 203F on erics and pull the shot within 30 seconds.
- usually starts at around 201.5-202F and ends around 196sih. (My assumption is the temp is 3F higher at puck)
I think the PID machine everything will change, but the flavour will tell you when and how much to flush and how much you wanna set your pid too.
Unfortunately this is something you will need to play with to get a decent cup out of the machine.
What is the quality of your espresso?
Read your reply to eric's post.
I think the thermometer just gives you a bit of insight on what the temperature would be, and it only measures accurately when water is passing through the chamber.
If you shot after shot is very consistent then i wouldn't worry about the temperature too much when idle, i would worry about temperature while you are pulling the shot (start to end) which will give you an idea of what is happening.