Microplastics are tiny particles that commonly come from traditional plastics breaking down. Food-grade silicone is a different material and is designed to be durable for everyday kitchen use. While no material is perfect, many customers choose silicone containers because they don’t typically behave like brittle plastics.

• Choose food-grade silicone and follow the temperature guidance on the packaging.
• Avoid cutting food directly in the container or using abrasive scrubbers to reduce wear.
• Wash before first use and inspect for damage over time.

If you prefer rigid, nonporous options, glass or stainless-steel containers are also available. You can filter by material and capacity for pickup or delivery.

Different materials offer different benefits, so the "safest" choice depends on how you use them.

• Glass: Nonporous and inert, great for leftovers and reheating. It’s heavier and can break if dropped.
• Stainless steel: Durable and lightweight for lunches and snacks. Not typically microwave-safe; pair with tight lids for leak resistance.
• Food-grade silicone: Flexible, freezer- and microwave-friendly, and easy to portion. It can pick up odors if not cleaned well.

Look for clear labeling (e.g., food-grade, microwave/freezer/dishwasher-safe) and lids that seal securely. On Walmart.com, you can sort by material, capacity, and features, then choose store pickup or delivery.

Glass is a popular pick because it’s nonporous and doesn’t typically interact with food, which many shoppers value for long-term storage and reheating. A few practical tips can help you use glass safely:

• Confirm whether the container and lid are oven- or microwave-safe; lids often aren’t oven-safe.
• Avoid sudden temperature changes (for example, don’t move from freezer directly to a hot oven).
• Use lids with reliable seals to help prevent leaks and protect flavors.

If you prefer lighter options, stainless steel or food-grade silicone containers are also widely used. You can compare materials and features online before you buy.

Food-grade silicone is commonly used for freezer trays and containers because it stays flexible at low temperatures, which can make it easier to pop out portions like soups or sauces. Many shoppers find it helpful for meal prep and single servings.

• Check the product’s temperature rating and follow care instructions.
• Allow hot foods to cool before freezing and leave a little space for expansion.
• Seal lids to reduce freezer odors and stack containers to save space.

Results can vary depending on your freezer and the type of food. You can filter by size and features to find the right fit.

Think about portions and how you’ll use the container.

• 1-cup containers/trays: Handy for sides, baby food, sauces, and snacks.
• 2-cup containers/trays: Great for single-serve soups, stews, and lunch mains.
• Collapsible styles: Useful when storage space is tight or for on-the-go meals.
• Lids and leak resistance: Choose airtight lids if you’ll pack liquids.

Check listed dimensions so containers fit your shelves and lunch bags. Many silicone options are freezer, microwave, and dishwasher safe, which can simplify meal prep. Use Walmart’s filters to compare capacities and pick up today or schedule delivery.