Originally Posted by XXguy
If you're not checking for conversion, you really don't know if it converted, no matter how long you mash. I don't quite get what is meant above by "false readings". If you still have starch, you will get a positive reaction when you do an iodine test. Anytime I've gotten a positive reaction for starch, I knew I had to wait longer.
How'd you know you had to wait longer? Did you have another method to determine the level of conversion? You can't know if it's a false positive if that's the only method you have.