What did we learn?
The Chemex Cozy works.
As you can see on the chart below, the cozy kept the liquid warmer throughout the test period, even though (somewhat mysteriously) the initial temperature at 20 seconds was a few degrees cooler when the cozy was on:
At 30 minutes with the cozy, the liquid was still about as hot as it was with no cozy after 10 minutes.
It's also worth noting that the one big drop in temperature came at the moment I had trouble with the thermometer. Further study -- and a new battery for the Thermapen -- may be required. It may be that the more gradual decline seen in the first 10 minutes with the cozy (drops of 9 and 4 degrees, compared with 24 and 13 degrees in the control condition) would hold for longer. Other explanations for the discontinuity in the rate of cooling are welcome.
Praise be to the Chemex Cozy! And thank you, Grandma Joy! The cozy looks great, and it works like a charm. Mornings will be better -- or at least warmer -- from now on.
The Chemex Cozy works.
As you can see on the chart below, the cozy kept the liquid warmer throughout the test period, even though (somewhat mysteriously) the initial temperature at 20 seconds was a few degrees cooler when the cozy was on:
At 30 minutes with the cozy, the liquid was still about as hot as it was with no cozy after 10 minutes.
It's also worth noting that the one big drop in temperature came at the moment I had trouble with the thermometer. Further study -- and a new battery for the Thermapen -- may be required. It may be that the more gradual decline seen in the first 10 minutes with the cozy (drops of 9 and 4 degrees, compared with 24 and 13 degrees in the control condition) would hold for longer. Other explanations for the discontinuity in the rate of cooling are welcome.
Praise be to the Chemex Cozy! And thank you, Grandma Joy! The cozy looks great, and it works like a charm. Mornings will be better -- or at least warmer -- from now on.