Why can I taste coins when it is on my hand?

Question

When I have a coin on my hand for a while, I feel like i can taste it in my mouth. The same thing happens when I hold a metal pen.

Answer 1

A few possibilities come to mind:

1 synaestesia - like when people see music or hear colors.

2 suggestion - you know how it tastes so your brain brings on the memory.

3 the sweat in your hand brings out the smell of metal and you smell it. They say most of our tasting experience is actually smell.

Answer 2

why are you drooling  when you see a lemon..? I guess the answer is the same

Answer 3

Did you put your hand in your mouth? It is either that or your brain  is linking your senses too closely together!

Answer 4

Have read that if you put a peeled clove of garlic in your sock, under the sole of your foot, in a few minutes people will be able to smell it on your breath.

Never tried it because it would be uncomfortable to stand on a clove of garlic.