Tarnish on silver coins stored in ziploc bags with silica gel

[the5ilverinsightpro]

I've got a bunch of 2015 Silver Eagle coins that I've kept in Ziploc bags with silica gel. Even though the humidity levels have been pretty low, some of them are starting to show tarnish after four years. Any suggestions on what to do about this?

 

[investor tee]

Even with low humidity, coins in plastic bags can still tarnish over time so you should consider moving them to airtight containers like coin capsules or flips made of inert materials, and avoid handling them with bare fingers. Silica gel helps, but keeping air circulation minimal is key

 

[master nater]

"tarnish" comes from oxidation. not moisture.

if you want to keep them from tarnishing, put them in vacuum sealed containers or bags. this takes away the oxygen supply and stops oxidation/tarnishing.

 

[Old Soldier]

Isn't it ironic that even with silica gel and careful storage, modern coin collectors still can't trust basic preservation methods, proving the minting and storage advice hasn't really caught up with reality?