I knew my keys were a problem and I keep as few keys as possible on my keyring.
I decided to test my remaining keys and keyrings for nickel.
You can see the results in the photo below. I have circled the positive results to make it a little clearer –
three of my keys and one of my keyrings tested positive (showed pink on the test).
The bottle opener was aluminium so that tested negative.
As I mentioned I keep as few keys as possible on my keyring. Since doing the test
I’ve ditched the extra keyring which tested positive but still need the other keys!
To avoid contact I try to handle them as little as possible, never put them in
my front pocket and have a separate place to put them where they don’t transfer
nickel to my other belongings.
Nickel test kits from nonickel.com.