Many basic variations of cooking utensils available today, such as frying pans, pots, kettles, and waffle irons, already existed, although they were often too expensive for poorer households. Other tools more specific to cooking over an open fire were spits of various sizes, and material for skewering anything from delicate quails to whole oxen. There were also cranes with adjustable hooks so that pots and cauldrons could easily be swung away from the fire to keep them from burning or boiling over. Utensils were often held directly over the fire or placed into embers on tripods. To assist the cook there were also assorted knives, stirring spoons, ladles and graters. In wealthy households one of the most common tools was the mortar and sieve cloth, since many medieval recipes called for food to be finely chopped, mashed, strained and seasoned either before or after cooking. This was based on a belief among physicians that the finer the consistency of food, the more effectively the body would absorb the nourishment. It also gave skilled cooks the opportunity to elaborately shape the results. Fine-textured food was also associated with wealth; for example, finely milled flour was expensive, while the bread of commoners was typically brown and coarse. A typical procedure was "farcing" (from the Latin "farcio" 'to cram'), to skin and dress an animal, grind up the meat and mix it with spices and other ingredients and then return it into its own skin, or mold it into the shape of a completely different animal.