Posted: Jun 26, 2012 3:55 pm
BlackBart wrote:trubble76 wrote:BlackBart wrote:A complete stab in the dark...
Maybe the warm water has more impurities suspended due to convection in it that ice crystal can form on, whereas in cooler water the impurities would tend sink to the bottom?
Interesting, that could be quite easy to test I reckon. Fancy a grand?
I'm in the kitchen as we speak...does instant coffee count as impurities?
As a tea drinker, I'd say yes, certainly.
Edit to add: On a more serious note, would adding salt not count as impurities? But salt water doesn't freeze as fast so perhaps we can discount that hypothesis.