Don't bother with frozen corn, most of that stuff will float, go to your local feed store or academy, walmart, get some cleaned deer corn, put it in a 5gal bucket about half way then top up with water, at this stage add flavouring, put the lid on and leave to soak up the water for about 12hr, after the corn has swollen fully take out of the bucket and boil for about 20 to 30minutes, then chum away......