I started to warp coins with saran wrap and put them in a pill bottle so they wouldn't move around. Would tin foil be better?
For the money and time you're going to spend on these methods, why on earth couldn't you just buy a few coin tubes?
The money you save by using these pill bottles...you will lose when your coins get scratched, nicked, and corroded. I'm just saying... My grandmother used to keep her coins in pill bottles...until I saw that, and spent $20 on tubes for everything. Now at least they won't be green next time I look at them.
Sorry, I'm not trying to be rude at all...but you have no idea how many wheat pennies I've had to unwrap from saran wrap and tape while sorting through my auctioneer friend's coins. Even paper coin sleeves are available for like 5 cents each...that would be preferable to saran wrap. And a second vote for "NO" on the tin foil...
So is Saran wrap dangerous to coins. How will they get corroded and scratched if there is no water in the bottle and is practically air tight and the coins are in saran wrap?
Let me do a quick search to see if Saran Wrap has PVC or any other chemical product that would cause corrosion in coins. (I'm trying to give you documented proof other than just my experience in what I've seen when I've unwrapped them.)
A quick web search tells me that PVC is still commonly used as an ingredient in plastic wraps, although I've thrown my container of Saran Wrap away (because it didn't cling to anything, really) or I would check the label. PVC will cause green slime to appear on your coins and WILL ruin them eventually. This is why people are telling you not to use it. I mean, you could argue all day if you want...but you came, you asked, and people answered (trying to help you.) Why not take the advice given?
I think you'll find that since Saran Wrap is for food it won't contain any PVC. But, we await your search results. Edit - need to confirm Saran Wrap. Some of these wraps are colored though, and even if not PVC the coloring or other additives could have a negative effect.
Well, as I said, after a quick search...I found that PVC makes plastic wrap pliable and clingy, but is not very permeable, but another chemical, LDPE, is a bit more permeable (but not as clingy.) It depends what individual product you use...whether or not it will have harmful chemicals in it. I guess I just don't see the point in arguing a point or researching whether or not a particular food service product will be harmful to coins when there are perfectly acceptable, widely available, and inexpensive ways to store your coins. But, to each their own, I suppose. You have no idea how many Crown Royal bags I've run into filled with Wheat Cents.
PVC no longer in Saran Wrap, if that's the actual brand being questioned. I'd still advise not using it. "The original Saran Wrap is made of polyvinylidene chloride (PVdC). In July, 2004 the name Saran Original was changed to Saran Premium and the formulation was changed to low density polyethylene (LDPE). SC Johnson claimed that this change was a result of an initiative to look for more sustainable and environmentally acceptable plastic. The film in Saran Premium Wrap does not contain chlorine. However, LDPE does not possess the same barrier qualities to oxygen, aroma, and flavor molecules that vinylidene chloride copolymers do, making the new formulation a lower quality plastic wrap, as it is not as useful in protecting from spoilage or flavour loss.[SUP][[/SUP][SUP]citation needed[/SUP][SUP]][/SUP] PVC is not impermeable, but adheres well. LDPE is impermeable but doesn't cling as well.[SUP][3]" http://en.wikipedia.org/wiki/Plastic_wrap [/SUP]
There actually is a chemical called Saran, but I don't think it is available as a food wrap anymore. The commercially available "Saran" is actually made of polyethylene (PE) although I don't know if it is high density polyethylene (HDPE) or low density polyethylene (LDPE). According to their web page, the Premium Saran contains no chlorine, which it would have to have if it contained PVC (polyvinyl chloride). The only problem I would have is that the pill containers might be vinyl and actually have chlorine in the material of construction. If so, wrapping the coins in the polyethylene film wouldn't really protect then since it is very permeable and would allow gases from the container to get to the coins.