Couple Quick questions.

[Shopsmart]

Sorry if this is repeated but the details are a little more specific. I just recently bought a 1/4, and rolled them into joints with mouthpieces, I licked the lighting ends a bit to make sure they stay closed, I found out I may have to take a drug test soon for a job. So I put them in a plastic baggie and squeezed as much air out as I could and then put them in a mason jar in a sock in one of my drawers. I've only had it for about 4 days now and was wondering if the moisture from my mouth would be a problem, they were sitting out in just the baggie for about a day, before I stashed it. So far it seems to smell kind of minty but it doesn't smell bad it actually smells pretty good. So these are my questions:

1. I'm not exactly sure if my jar needs the seal heated on or not it just seems like a strip of thin rubber or glue, but when I take the lid ring off the lid cap is still stuck on pretty tight, so is the air being kept out?

2. How do I "breathe" it? About once a day I've been taking the baggy out popping it open and blowing into the jar once, and then sealing it back up.

3. How long should it last and will it get moldy, if I am doing things correctly? I'll probably be good to go in a week or 2, 3 at the latest.

Any tips/advice on what I should do to increase length would be greatly appriciated thanks for your time.