How often should you feed your worms?

From WormWiki

Feed your worms as often as they use up what you fed them last. You can feed them as often as every few days, check to make sure the last feeding is gone before adding more. If it starts to stink their is too much food in the bin. They can go for along time living on the bedding you already provided them. The less you fuss w/ them, the better they do their job. In a smaller bin it's usually best to put the food in a corner and keep it covered w/ lots of bedding.