A bread knife has a long blade with a coarse serrated edge. The length of the blade makes it possible to cut through even wide breads. In addition, bread and pastries can be cut into nice and even slices.

The waves of the bread knife are arranged either centrally or on one side of the blade. In the case of a lateral serrated edge, a distinction must be made between knives for right-handers and for left-handers.

A preserving jar is a hollow glass jar used for sterilizing preserving and storing food; sometimes also for baking and cooking food.

To be distinguished from the classic preserving jar are jars with screw cap (twist-off) or those where the lid is made of glass and has a rubber ring for sealing, but is permanently connected to the jar by a hinge and a lever closure.