On Tue, 12 Nov 2013 05:00:09 -0800 (PST), Helpful person
> wrote:

>On Tuesday, November 12, 2013 2:05:46 AM UTC-5, sf wrote:
>>
>> I don't like the idea of setting it in water. My luck is that I will
>> get water in the dish. I'd rather set it in ice... but I'm wondering
>> why you need to cool it down so quickly. Give it 15-20 minutes and it
>> will be practically cold.
>>
>Ice won't work. It needs the thermal contact of water.

In 30 seconds it'd be sitting in ice water.