I know you can obtain a container filled with mud, but does it have any use? I know you can read about mud from these books-
"On different Fluids, 2nd publication, part two"
I am not quite sure, but I suppose, this "beer" does not have human root. No one is able to produce it. Nevertheless, there are hundreds, thousands of potions arround this world? Where do they come from? Who is interested in drunken hunters? The answer is quite obvious: The demon! Beer is an invention of the demon!
There is another very mysterious fluid here in Tibia. People tend to call it "oil". I really don't know what to do with it. It smells strange; if you know how to put it on fire, it burns quite fine (it's not easy, but once it burns it is very hot!).
Avoid steping on a pool of oil - it's very slippery. That leads me to an idea: My watch doesn't work anymore since yesterday - maybe I should try to throw it in a glass filled with oil? If I succeed, I will write another book on this topic.
The last known brown fluid is "mud". It is a very familiar fluid; it doesn't smell, but it is dirty. I do not know, how this mud fits into our world, but it is just here. Nobody knows where it came from, nobody knows its use...
How to mix magical potions
Potion of fast movement
This potion makes the user run faster than the fastest known creature. It is not known, if there is a brake once the effect disappears.
You will need the following things:
a tail of a very fast creature
a piece of wood
and, of course,
a rapier to stir with
and finally a pot to cook in it.
Cook this fluid for 9 minutes and cast the words "rurnum maelis" in the direction of the cooking fluid. Put a drop of it on each shoe you wear and run!
Good luck, happy cooking and beware of obstacles!