The best beer is whatever they're selling at the last business you encounter at the end of long day touring in the desert, and you tuck it into your sleeping bag and ride on until you find the perfect camp, all alone and hidden and the night falls and stars light up and finally you spritz open your still-cold nightcap. It's always worked for me...except once, in Australia, when I stuffed two beers into the sleeping bag and one somehow opened the other and I got a beer-soaked sleeping bag.
Luckily, the other beer was still fine.