Understanding the Process of Deflection Using a Tin Foil
Consider a tin foil that you’d cover a roast with. When you first use that tin foil, it is supple and conforms to the container you are trying to wrap. However, as you unwrap the foil to slice off a piece of the meat and then try to re-wrap the container, the foil is a little less supple than before. The portion of the foil that hardens is the portion of the tin foil that is being used or “deflected” the most. Eventually after repeated use, the tin foil will actually become harder and harder until it rips or breaks.