The Hogwarts kitchens are located directly below the Great Hall and are just the same size. They have high ceilings and a great brick fireplace at on end. Mounds of brass pits and pans are heaped around the walls. There are preparation tables directly below the four house tables in the hall above, and when the time comes for the food to be served, it is magically transported through the ceiling of the kitchen onto the plates. The kitchens are staffed by over a hundred house-elves. To get to the kitchens, take the door to the right of the main staircase in the entrance hall. Follow the corridor until you come to a painting of a bowl of fruit. Tickle the pear and it giggles and becomes a door handle.

Potions are magical liquids created by mixing various ingredients in a cauldron according to very specfic rules. These mixtures must usually be drunk to give their magical effect. The ingredients in potions range from mundane to the bizarre and fantastic, and the procedured for creating some potions can be complicated and time consuming.

The walls, which are in shadow, are lined with glass jars, including the wall behind the professor's desk. Each jar contains some potion (differently colored jars) in which suspended slimy bits of some animal or plant (different ones in different jars).

Or perhaps in Slytherin
you'll make your real friends.
Those cunning folks use any means
to achieve their ends.