The Best Way To Remove Labels From Jars - Frugally Blonde container to soak the jar. salt. baking soda. oil. To remove the labels on jars you will want to start by soaking the containers in water for about 20 minutes. I recommend using so hot water so it helps with the glue that holds on the label. Sometimes, soaking will remove about 99% of the label. It just kind of depends on the label that is on ...