I have been asked a few times now “What tea cups cools the fastest”? The general answer is metal > glass > ceramic tea cups but there are a few more things to think about if this is an important factor in your decision of tea cup. Let’s start off with the numbers before we get into the variables.
The following chart is a list of thermal conductivity listed in decreasing order. In layman's terms, the materials at the top of this list “cool” faster.
One more concept to think about the selection of our tea cup is the size an surface area. Smaller tea cups cool faster. Also, Tea cups with a wide exposed surface area will also cool faster.
email questions to eli@elitea.co
The following data was found on the following websites:
http://global.kyocera.com/fcworld/charact/heat/thermalcond.html
http://www.engineeringtoolbox.com
