The messy build-up of old, stubborn labels on jars and food storage containers is an annoyance for many. These dissolvable labels are a great solution, dissolving under warm running water in 10 seconds without scrubbing or scraping, leaving no sticky film. In fact, they work so well that the condensation formed by leaving a refrigerated jar out on a warm day is enough to start dissolving these labels slightly. As a result, we recommend them only for one-time freezer use or for non-refrigerated items.