They’re calling it I call it 'Sourdough 2.0' - Canning has become the latest pandemic trend and it has led to a shortage of Mason jars.
At the moment, it’s more of a U.S. problem, and it's more about the lids than the jars - jars can be reused, lids cannot. The good news is if you can’t get your hands on mason jars, there’s always the freezer.
