Sorry to post here, but when I go to your contact us page only a phone number is listed

So I have your Premium DIY Kit (and love it btw)
But the included bottles to mix with are they pyrex? Can they withstand tank cracking juices and oils?
I diy clove juice with mixes of your flavorings and some oils
Getting ready to go on vacation and would rather not find out the hard way to mix and store in the included bottles and they melt lol