Is there an optimal temperature for the Mpemba Effect? If so, what is it?
If a specific example is needed: There is a 100 milliliter sphere of water floating in air at -10 °C. At what initial temperature greater than ~10 °C1 will the temperature of said water drop to 0 °C the fastest?
1Or whatever the local maximum nearest to 0 °C in a temperature/time to freeze graph is.