A compost bin is not necessary but does make it easier to build and maintain a pile. Whatever you use, make sure there is adequate air movement through the sides. Construction of one removable wall allows easy access for turning the pile with a shovel or pitchfork. Some people build adjacent bins, turning the material from one to the other. A Crash Course in Composting Composting is like cooking, with many recipes and variations.
Browns are dry materials such as wood chips, dried leaves, grass and other plants.
Collect as many browns and greens as you can to start your compost pile. Larger piles tend to hold moisture better and decompose faster. Place approximately equal amounts of browns and greens in a heap or bin. Always cover food scraps with other composting materials. Cover pile with tarp or other material to keep moisture in and prevent soaking from rain.