One way to reduce the frequency of scours among young calves is to feed clean colostrum. As a best management practice, we want to feed colostrum before bacteria in it can multiply – a practical goal is get colostrum inside the calf within one half-hour after it is collected. However, many times we do not feed colostrum this quickly. Therefore, we are interested in chilling colostrum because the closer we get to 40ºF (compared to 100ºF out of the cow), any bacteria in the colostrum grow more slowly.