I would like to propose several options so that peeling off the labels from the glass containers to be successful.
Baking soda and water
Put the bottles into a larger pot, add 16 teaspoons of baking soda and 32 cups of water and leave them for 30 minutes to soak. If the labels were cut out entirely, simply wipe them with a dry cloth.
Sit bottles into a container and add ¼ cup of ammonia. Add water to the container and put the lid for 30 minutes. When you remove the bottles do not forget to use gloves. Peeling off labels will be easy. Ammonia is one of the most effective ways to remove labels but is quite strong chemical smell, so make sure the room is airy enough before. After you have removed the bottle of ammonia, rinse with cold water to remove any residue.
If you choose this option to get rid of labels, all you have to do is put water on to boil in a pot. After the water has boiled, keep the bottle above the pot for 10-15 minutes and then carefully separates the label by hand.
Soap and water
It is one of the most affordable ways to peel off the labels, but not one of the most effective. However, it is worth trying. Put a drop of soap in a bucket, add water and fill the bottles full of water jugs. It is necessary to fill the bottles that would otherwise rise to the surface and would float. Leave them to soak a night (or rather two) then remove label with a wire brush.
You need a powerful hair dryer to remove the labels, otherwise you laying a lot of effort for nothing. Keep the dryer on the label about 5-7 minutes, and then remove the label using a razor blade.