Urgent help - Blue Videne

[masterosouffle]

Just got sorted to keg one of my beers and was pouring the Videne solution from the keg when it turned blue, proper dark blue! Why has this happened and is it something to worry about?
I'll rinse it again, but will hold off on anything else until I get a reply, cheers,

[leedsbrew]

sounds like a positive starch-iodine reaction

http://en.wikipedia.org/wiki/Iodine_test

cheers

LB

[masterosouffle]

Great thank you, that looks like it, must clean kegs better!

[BozBru]

Rinse, then rinse again, and rinse again to be sure. Then rinse again for peace of mind.