It is a hot afternoon... (keep reading)?

Question

It's a hot afternoon; you've just finished mowing the lawn and are in need of a nice, cold beer. Prior to starting your yard work, you put the beer in the freezer so it would be very cold — and refreshing — when you were ready to drink it. You take the beer from the freezer, and it is indeed very cold (but not frozen). But before drinking it, you add a little lime juice. All of a sudden, ice crystals form and work their way down through the beer. What happened?



(I'll post the answer in ten minutes, so check back after you've replied)

Answer:
The beer you've taken out of the freezer is supercooled — it has been brought below its freezing point but hasn't actually frozen. Supercooled liquids are usually very unstable and can often be induced to solidify by a slight mechanical disturbance.

Opening the beer and adding the lime juice is the disturbance that causes the ice crystals to form. (Actually, just opening it can disturb its metastable state.)

Answer 1

i'd really like to know why and how.
do post the answer soon

Answer 2

Your answer is correct. The question has been previously posted and answered in this forum.

Answer 3

COOL I'm going to try it today with CORONA and lemon. Thanks for the tip, BEER SLUSHIES - yum yum yum