I have raised red worms for years and have used fruit and vegetable scraps for food and the worms have done well. Recently, I added several trash bags of semi dry cow manure that I have picked up from the pasture. The worms have gone hog wild over this addition. My container is a 15 foot freezer that is housed in the shed outside. If a red worm could do a happy dance they would. I do not have to do anything except make sure that I keep the manure moist. These worms numbers have exploded in the freezer. There is no noticeable odor. All it takes is a friendly farmer, who has cattle, that does not mind you picking up some of the paddies. A few fillets back to him probably does not hurt either. What farmer can refuse that offer? I use a hand rake gardening tool to gently roll back the manure to check on the worms and start picking the plump worms.