Someone on Facebook was nice enough to share their milk kefir grains with me. They sent them via mail in a padded envelope in a little tiny tupperware container in some milk. It's winter here so I'm assuming most of the time it was pretty cold. May have experienced some temp fluctuations in sorting centers and such.
I haven't had time to deal with them so I left them in the same milk and container they came in. They've been in my fridge for almost 3 weeks now. Looking at the container... it's pretty thick stuff now!
Did I ruin them?
Is it OK to leave them in the same milk, in the fridge, for this long?
Do I need to 'revitilize' them or anything before I make a batch of kefir?