do i have to water bath peach jam
A water bath is to sanitize the jars before filling them with jam. A water bath should be done and can be done in the dishwasher by using the sanitize cycle. If it is not done, the jam will remain runny and will not set.
It is very important to give your canning jars and lids a good washing before use. A dishwasher does an excellent job, and will completely sanitize the jars and lids.