Techniques for properly storing vegetables include drying, canning, curing and salting, freezing, and common storage methods like leaving items in the ground, burying them, or storing in cellars, crates or barrels. Following the FIFO (first in, first out) method is important for ensuring the oldest food items are used first before they expire. Adhering to specific storage times and regularly checking food quality helps maintain freshness. Benefits of FIFO include less food waste, better food safety, improved customer satisfaction and kitchen efficiency, and aids menu planning.