I found that the coffee actually cooled TOO quickly in my cup - only 1 minute to correct drinking temp, but too cool after about 3 more minutes. Not a problem if you like to GULP your coffee!
Next time, I'll use 4 Joulies instead of 5.
Well, here's a question. Could their use be finessed with a bit of pre-heat to the Joules? In fact, it seems to me, as I consider the dynamics, that it might be better still to use
more Joules -- but with some level of pre-heat to them.
As you use more, their immediate thermal effect will be more pronounced. Pre-heating would reduce that immediate effect, offsetting the increase in number. But that would also mean more thermal inertia to slow cooling.
It may be difficult, with this phase change stuff, to be repeatable with pre-heating. I presume there's a drastic thermal curve at some point with the things. So perhaps pre-heating should be thought of as how many room temperature ones you add, and how many fully pre-heated ones.
Heck, I can envision a scenario where you just boil the darned things in your water heater. Or maybe drop them in just at boil to drop the temp in the brewing water to a good brewing level AND give them a full pre-heat, before they join their cooler fellows in the cup.
Seriously, as with the Aeropress, I suspect this technology is going to see some cunning hacks. And no, I'm not talking about anyone here.
