Odors are never welcome, especially in items that are used for storing consumables. Even if the item is clean, an odor can make it seem unsanitary. One wouldn't think that something that holds ice could develop a smell, but plastic is a porous material and it doesn't take much for foreign odors to become trapped within. Removing these odors takes little more than a little creativity. With the right materials, the smell in your plastic ice storage bin can be successfully removed.
Several Simple Suggestions
Fill the ice bin with bleach and allow it to soak overnight. In the morning, wash the bin with warm soapy water and dry it out with a clean dry towel.
Sprinkle baking soda into the container liberally and place the lid on it. Allow the baking soda to sit inside the container for at least 24 hours before replacing it with fresh baking soda. Continue to do this until the odor is gone.
Crumple up newspaper and fill the ice bin with it and put the lid on it. Leave the newspaper in the ice bin, replacing it every two days until the odor is gone.
Set the ice bin outside with the lid off so that it is directly in the sunshine. Leave the container outside all day and check to see if the odor is gone at the end of the day. Repeat the next day if necessary.
Soak a piece of bread in white vinegar and place it inside the ice bin and put the lid on it. Leave the bread inside the bin overnight and dispose of it in the morning. Be sure to wash the bin out with warm soapy water.