Start with how you plan to use them. Think about portion sizes, fridge space, and whether you’ll freeze or meal-prep. Small containers work well for snacks and sauces, medium for single meals, and larger ones for family portions or leftovers.

• Measure once: note a typical meal plate portion so you buy containers that fit.
• Stackability: choose shapes that nest to save cabinet space.
• Versatility: consider sets with multiple sizes so you have options.

If you bought containers from Walmart before, check your order history for exact sizes or use site filters to narrow options.

Both types can work well, depending on the product. Look for items explicitly labeled microwave-safe. Here are general trade-offs to consider:

• Glass: heats evenly, resists staining and odors, and many glass containers are freezer- and oven-safe (check the listing and lid restrictions).
• Plastic: lightweight and less likely to break; many are dishwasher/freezer/microwave safe and often stackable.

Tip: avoid microwaving containers that aren’t marked microwave-safe and follow manufacturer guidance on lids and heating times. Shopping filters on the site can help you compare materials and features.

Prevent pressure build-up by letting steam escape. Many microwavable containers include a vent or loosely fitting lid for reheating. If a lid is airtight, don’t microwave it fully sealed.

• Open or lift the lid slightly, or use the vent tab if provided.
• If there‚Äôs no vent, cover the container with a microwave-safe plate or paper towel to reduce splatter while allowing steam out.
• Heat in short intervals and stir or rotate food halfway through for even warming.

Always check the product’s instructions on the retailer page before microwaving.

Use gentle, household methods that work well for most containers. Many items on the site are dishwasher-safe, which helps remove residues, but here are additional tips:

• Soak plastic containers with a mix of warm water and baking soda, or a little vinegar, then wash with dish soap.
• For stubborn stains, make a paste of baking soda and water, rub gently, then rinse.
• To reduce odors, place a slice of lemon or a bit of baking soda inside and let it sit overnight.

Avoid abrasive scouring on plastics to prevent surface damage; follow any care notes on the product listing.

Yes—you often can replace lids, but options vary by product. Start by checking your order history on Walmart.com for the original product page; replacement parts or accessory listings may be available there.

• Measure the container‚Äôs top diameter and note shape (round, square) before searching.
• Look for universal lids or silicone stretch covers when exact matches aren‚Äôt listed.
• If you need help, contact Walmart customer service with the product name or SKU from your order‚Äîagents can often point you to compatible parts or listings.

Availability isn’t guaranteed, so measuring first helps you find the best match.