Blue sparks from polo mints

[simonrockman]

There was a radio 4 programme last week talking about blue sparks from polo mints. I only had it on the background and would like to listen to it using listen again.

Does anyone know what the programme was?

[steviejasp]

Here you go:
http://www.bbc.co.uk/programmes/b017ckf3

[simonrockman]

Excellent. thanks

Simon