Camping Kettle

Once it starts to boil, reduce heat to low simmer it and cook for another 10 minutes.

about 5 or 10 minutes depending on the strength you like we let our own 15.

He made the second it starts to boil, if you use the method to combine water and coffee grounds. If the coffee is separated from the water and you perculating. Give him five or six minutes from time percolation. Set the percolation time to taste as needed.

In my opinoin, once the coffee is boiling in a cauldron of camping, it's already been spent.

Coffee, like tea leaves should not be boiled. Boil water should be poured over the coffee.

However, there are many schools of thought on this - see reference below.

If a spoon does not fall, but dissolves in coffee ... it is made.

If you plan to drink it, do not boil. Just add coffee to hot water and let stand. Make sure it is closed. It just may become a potion to drink.

When you can stick a spoon in it, and the spoon stands up.
(I hate coffee)