One of the biggest sources of food waste is trim waste from fruits, vegetables and meats. Some trim waste is inevitable. For that, try to repurpose using my guide to repurpose commonly wasted foods. But some trim waste is created because of poor knife skills: a quarter of a bell pepper is left on top, meat comes off when fat is trimmed. Teaching proper knife skills is critical. Find out the chef on your team who is best with knives and have him or her give a tutorial. Short of that, we've collected some great knife skills videos to help out with teaching the basics.