About the time of the 'coffee incident' many Aussie places, including Macas used to sell the stuff at near boiling. After that, most places began to monitor the temperature of their coffee - some places even had thermometers permanently placed in their serving jugs.

In Australia, takeaway coffee was often sold in single piece blown Styrofoam cups. I noticed an occasional weird effect. Some cups (obviously from a 'faulty' batch!) would weep clear water when left to sit for a while. The foam must have had tiny capillaries which were actually filtering the coloured stuff out and letting clear water pass!