The Norpro Canning Bubble Popper Measurer is an essential tool for anyone who enjoys home canning. Its unique design allows you to easily remove trapped air bubbles from the rim of jars, helping to ensure a proper seal. With clearly marked measurements on one end, it also serves as a handy tool for checking the head space in your jars, which is vital to prevent overfilling and promote safe canning results. Made from heat resistant plastic, it protects jars from scratches and is built to last through numerous canning sessions.
  Whether you are preserving jams, sauces, or vegetables, this green bubble popper is the perfect companion. Simply run it around the edge of a jar while pouring to release air bubbles. Then, use the built-in scale to measure the correct liquid level for your recipe. This tool ensures a tight vacuum seal forming when the jars are processed, helping to keep your preserved goods fresh and safe for longer. It's not just a tool, but a must-have addition to your canning set.