To maintain shelf life of cereals, flours, and cornmeal, store them

• A. In airtight containers
• B. In direct sunlight
• C. In the freezer without wrapping
• D. In a cardboard box

Answer: (A)

Preventing moisture and air from getting to cereals, flours, and cornmeal is key to keeping them usable longer. When these foods are stored in airtight containers, the seal blocks moisture, odors, and pests, helping prevent mold, staleness, and rancidity while preserving texture and flavor. Direct sunlight exposes foods to heat and light that accelerate spoilage, so keeping them out of light is important. Freezing can extend life, but it only helps if the contents are wrapped or sealed properly; freezing without any wrapping exposes foods to freezer burn and moisture changes, hurting quality. Cardboard boxes are not protective enough because they are porous and can let in moisture and pests. So, using airtight containers is the best way to maintain shelf life.