D*** straight SS!
James,
My preferred brew is made an aluminium percolator stood on the edge of the fire and brought slowly to the heat, it should be allowed to "blub" for five minutes and then stand for 5. The pot is then emptied into my mug and drunk black, or with a splash of fresh milk if available. No powdered milk or UHT stuff ta.
I'll drink Alta Rica (4-5 spoons in a Crusader mug) if going on a long haul / small pack. I've also brewed coffee in a billy. the trick is never to boil it, keep it just under the boil for 5 minutes (and don't put the grounds in as you heat the water - put grounds in water once its hot, never water on grounds). You can then pour the coffee off through a small strainer (handy for filtering crud out of stream gathered water as well prior to putting puritabs in). At high altitude add salt and eggshells to the water
HTH
Red