Optimal temperature for Mpemba effect

Question

Is there an optimal temperature for the Mpemba effect? If so, what is it?

A specific example: consider 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.}

Answer 1

To maximize Mpemba effect we have to maximize the entropy content of the drop.Supposed P=1 atm,to do this we have just to maximize the temperature.The maximum temperature we can get without loosing the drop by evaporation is 100 oC.