guydebord wrote:Should I? I figured that as long as the water touches the thermocouples it should be ok, no? Or am I missing something?
I probably should put this into Wikipedia or something: The idea of a thermocouple in the PF is to measure the temperature the puck experiences during the shot. There are two techniques used.
The first is the Schomer PF: a regular basket and PF with the thermocouple inserted. You fill it with coffee, make a shot, and get a reading of the what's happening during the shot. Usually the themrocouple is set up so that it's just above the puck, but you can try different variants.
The second is the Scace thermofilter. Since making actual shots to take repeated readings is very tedious, it would be nice to have a fake, reusable puck. The Scace has this, some foam to mimic the absorption and thermal mass of the puck, and a flow restrictor so the flow is comparable to a regular shots. Greg works for NIST, so his set up is uberprecise and the gold standard; but you can rig something similar ("the ghetto Scace") by taking a spare basket, gluing all the holes shut, and pasting in a pad of sponge material. Then partly drill out one hole and measure the flow. It should be roughly right. We were rigging these up for a couple of years before the the thermofilter came out, so you are not stepping on anyone's toes by making one.