The Cauldron is a symbol of germination as well as fertilty, abundance and the revival of the dead.
Modern cauldron are typically a round iron pot with three legs, a handle and often a lid.
If you are serious you should have more than one cauldron.
One for rituals.
One for potions
One for smudges and other magic.
The reason is because it is very difficult to cleanse the cauldron enough after rituals to prepare a pure potion.
It is important to keep your potions clean and pure. The best way to store your potion cauldron is upside down so it remains dry.
Cast iron cauldrons for all cooking of poisons, burning herbs, incense for your Wicca, Pagan, Witchcraft rituals.