"Color semitransparent and uniform. Barely passable. Take out the Mana Recovery Potion"
"Mm. Here." With Professor Rupa's order I took out from my backpack a standard size wood barrel that has the capacity of fifteen Eight of Water or Liters.
The barrel is special for storing finished potions and just like the cauldron measurements they also have various sizes from the small ones that can store three Eight of Water to the giant ones that have the capacity of more than three Barrels.
Here I have to complain because it is something confusing, the Barrel is already a cubic measure because that is how the cylindrical container made of wood that serves as a means of storage for liquids is called -Barrel-, so a barrel has the capacity of obviously a barrel...
