This document contains various cooking tips. Some of the tips include: washing vegetables before peeling or cutting to preserve vitamins; peeling vegetables thinly to preserve minerals and vitamins; applying lemon juice to cut apples to prevent browning; soaking chopped onions in water after cutting to reduce crying; freezing dry fruits before chopping; and salting meat halfway through cooking rather than before to prevent juices from being forced out. The document provides numerous additional tips for cooking various foods in a way that preserves nutrients and flavors.