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I am taking an iodine test and it keeps changing color. What is wrong?

April 26, 2017changing color Iodine taking Test wrong

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I am taking an iodine test and it keeps changing color. What is wrong?

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Although the iodine test is generally reliable when using pale malt (use tincture of iodine available at licensed pharmacies), it can be less than reliable when mashing with wheat malt or adjuncts. If the iodine keeps changing color, and you have mashed for over an hour at 150° – 158° F., leave the mash for another 30 minutes. If the iodine still changes color, go ahead and start sparging, as you have converted all the starches you can with the available enzymes, and you will probably still get a good extraction rate.