The best ways to store food in containers made from alternative materials involve ensuring the containers are food-safe and do not impart any harmful substances to the food. For glass containers, ensure they are free of lead and are properly sealed to maintain freshness. For stainless steel containers, avoid those with non-food-grade coatings and ensure they are well-sealed to prevent spoilage. For silicone or plastic containers, look for BPA-free options and avoid high temperatures that could cause the material to leach chemicals. Always check for any odors or tastes that the container might impart to the food, and never store acidic foods in non-acid-resistant containers as this can lead to chemical reactions and contamination.