This mod lets you store potions, lava, and milk in a cauldron. It also lets you brew potions. (And AWESOME liquid transparency ;)
Here is a brewing example:
It works by throwing brewing items into the cauldron. There must be a campfire with blaze powder below.
All vanilla recipes work. While a potion is brewing, it will bubble. If you take the items out of the cauldron, it will stop. If you add new items, have a nice mundane potion.
To make your cauldron work: Right click it with blaze powder. The powder will not be consumed.
To remove items from your cauldron or campfire, shift-right click them with an empty hand.
Lava emits light. you can only add or remove it with a bucket.
Milk can only be added or removed with a bucket.
Potions can only be added or removed with an empty bottle, or the correct potion item.
Want bioluminescent mud in a cauldron? Want to brew an anvil in milk? Well you can if you hook into my API in The Recipe Manager. The code in the repo is a good example of what to do.