Freezer bags

I have heard here that I can use freezer bags to store some of my coins. Currently I have some of these coins in metal cans and small boxes, and yes, I know I need to get them out of there! But are all freezer bags safe for coin storage? If I just go to a dollar store and get some cheap ones can I use them? I do prefer those that have a zipper on them because I can never get the seams to line up right on the others, but does it make a difference? What do you all say?

 

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This question came up on another forum a long, long time ago. So, I contacted the makers of Glad storage products and was told that, for health reasons, their products are PVC-free. I would imagine that would be true for all makers of storage bags.

Chris

 

if you search for "ziploc bags" or "tupperware" you'll get lot of hits on opinions

such as
https://www.cointalk.com/threads/ad...long-term-silver-storage.332549/#post-3353028

or
https://www.cointalk.com/threads/air-tite-tubes-vs-guardhouse-boxes.326182/#post-3225465

but the type of plastic used is the main issue.
which some thread has a god description of various plastics and which ones are good.

 

Food saver bags with the machine sealer. I had my first coin in 1985 sealed in food saver bag. It never toned. Its on another thread. A valid application with proof. Its on another thread, coins of the carribean.

 

My coins are put in freezer bags before they go back into the safe.

 

mine go in tupperware containers, and if they are higher value, then that goes into a freezer bag just in case. But then the higher value stuff is offsite in a SDB anyways in a temp controlled environment.

 

An old Altoid can works best.

 

Get the thickest freezer bags you can find. Many are much thinner than the heavy duty. Use at least 2 freezer bags, coins in the first (inner bag) and seal and put into the 2nd bag along with some scruffed newer zincolns ( sacrificial coins) and a desiccator pack. If you are really paranoid you can repeat with additional bags and scratched up zincolns. If the zinks in the outer bag start getting darker, replace the desiccator, zinks in it and any other bags that are getting darker, I have had some higher priced coins in such for more than 10 years with no need to change, but I live in a desert, although we get close to 0-1 inch per year. The 100% copper shell on the zinks is many times more sensitive to chemical damage than even the 90% copper and silver coins and will react before it can penetrate into the next bag, unless you forget to check and not tell anyone before you go to the mint in the sky.

IMO, Jim