Iodine Test?

[Ciderhead]

Do you perform one of these to test for starches at the end of your Mash?
http://www.homebrewtalk.com/wiki/index.php/Iodine_test

[alealex]

Never tried, should I?

[imark]

Always

[DEMPSEY]

no

[Damien M]

Looks like something I should be doing............. Efficiency and Conversions!! 

[Eoin]

I used to, then I lost the iodine, buy I also feel no need anymore.

Sent from my HTC One

[DEMPSEY]

Ditto here regarding the lost Iodine bottle. Now you made me start thinking where it is now so I better have another coffee and start the search :

[Will_D]

I always do one whenever I divert from a 'standard mash' ( 90 mins at 65C)

[beerfly]

only did one out of curiosity, would do one if i was doing anything majorly different.  loads of speciality grain or not using MO

[Eoin]

Can we use those iodine tablets Fianna Fail sent out in 2002 to save us from nuclear attack?

Did you not take them just in case?

Sent from my HTC One

[JD]

I used to use Iodophor as a tester. Gave a very clear indication of "mash is done". I don't bother with it any more though: I ran out of Iodophor and Starsan is useless for doing an iodine test.

[Greg2013]

I think i might have a ml or 500 of Videne around somewhere 

[imark]

I'm surprised more people aren't doing the starch conversion test. I usually get negative results on the first couple of samples I take after an hour has passed. It's cheap and simple to do...only drawback is that it will extend your brew day.

[Jacob]

It's a pain in the neck specially with stouts,porters and other non blond beers :/
To see test results you should add roasted/dark malts after getting positive iodine result.

[JD]

I've used a white plate to test dark mashes. I put a drop of dark wort on the while plate a a separate drop of iodine. I swirl these together and if there is starch present, even for the darkest mashes, it will show purple against the white plate.