Kerr 8oz Wide mouth Jars with Bands & Lids These jars are a favorite for preserving jams and apple butters, spreads and small batches. They are suitable for hotfill canning, waterbath canning, pressure canning and for freezing! The absence of shoulders in this jar allows for easy filling and easy scooping, dipping of the delicious contents! They also make convenient storage for leftovers and are part of the official Mason Jar Meal starter kit. Scroll down to the From the Blog section to see an article on Freezing in Canning Jars. MADE in the USA.