I brewed a batch of double chocolate stout. It came with a pack of dry yeast, which I wanted to rehydrate. I poured a cup of cold water from the tap in the bowl with yeast, and then realized the instructions said "around 90F".
This is where I must have been asleep, as I poured in another cup of water straight from the water heater. It must have been near BOILING. I realized my mistake 30 secs later and added more cold water to bring it back down.
10 mins later I threw it all in the bucket.
It has been 72 hours and there is still zero bubbling in the airlock. Here is a picture of the beer: http://i.imgur.com/foduyB7.jpg
I did not take gravity readings.
Did I burn and kill my yeast and should I repitch?