I'm assuming since the hair got down the drain you don't have a strainer type cover. This is important to prevent this from happening in the future. You can probably find a universal one in any hardware store or get creative and make your own. If you do not want to use chemicals to dissolve the clog, you will have to pull the hair out with a crochet hook or something similar. A coat hanger with a hook at the end may do the trick.
If the hair is too far down to reach, try plunging it upwards a few times. Push down slowly without force to create a seal and pull up quickly to force the clog up where you can better reach it. Good luck! ... View related article.
I freeze quiche after vacuum sealing it while in the tin. I never have problems with ice crystals forming and it is very good after heating very slowly in the microwave. I have also reheated in a low temp oven with foil around the crust to prevent burning with good results as well. ... View related article.