Hello all, I'm starting to move my collection over to a more permanent storage option, and I've already got all the necessities: album with a case, pages, 2x2 self-adhesive flips, even some silica packs to put in the case for extra humidity protection.
Now, all of my coins are currently in a bag, waiting to be properly sealed in the flips.
What I'm afraid of, however, is trapping too much humidity with them. I've heard that the 30-35% range is the perfect one for coins, and my hygrometer right now shows a pretty steady rate of around 45% (edit: sometimes it can go even up to 55-60% on a bad day). With the expected rain, best case scenario is that I reach this ideal range in a few weeks – and since I'm a student counting pennies, a dehumidifier isn't an option right now.
Now, am I at all founded in my worry about the air humidity when sealing the coins? Or can I just start whenever I want without worrying about trapping too much of it with the coin?