Demijohn

A demijohn is kind of like a big glass bottle that's really heavy. It's used to store and ferment things like wine or beer. It has a narrow neck and a stopper to keep things from spilling out. You can also put things like fruit or spices inside the demijohn to give the liquid inside some extra flavor. Think of it like a giant jar you might use to keep your snacks fresh, but for grown-up drinks instead!