My Dear Father loved to make breakfast over the open fire, that included coffee. His coffee was a couple of handfuls of coffee grounds in the old coffee pot full of water and let'er cook. Throw in an egg shell to help settle the grounds. The next day add a couple more hands full of grounds and some more water and repeat the procedure. After a few days the old pot got quite heavy. My Mother would wait till Dad went fishing or just out walking and then try to empty out some of the grounds with out his knowledge.
That's my fond memory of camp coffee.