Food Storage Containers: How to Choose Sizes, Materials and Lids

The most useful food-storage set is one that fits your meals and your available space. A large piece count does not necessarily give you more containers, better lids or the sizes you will use. Start with the job you need the containers to do.

Choose the job before the set

• Lunches and snacks: check bag fit, portion sizes and whether the manufacturer specifically describes the seal as leak-proof.
• Leftovers: look for shapes that fit your refrigerator shelves and let you see what is inside.
• Dry pantry goods: check shelf height, opening width and capacity. Pantry storage does not automatically mean a container is suitable for reheating.
• Meal preparation: decide how many meals you normally prepare and whether divided sections would help.

A small selection of repeatable sizes can be easier to manage than a large assortment with many different lids.

Compare glass and plastic for your routine

Do not assume a “BPA-free” claim also means oven-safe, microwave-safe or suitable for every use. Those are separate specifications.

Read the piece count carefully

A set advertised as 20 pieces may mean 10 bases and 10 lids. Check the actual number of usable containers and the capacity of each size.

Comparison example: if one $30 set includes 10 bases plus 10 lids, its cost is $3 per usable container. A $24 set with eight bases and eight lids also works out to $3 per container. The right sizes and lid system then matter more than the larger headline count. These are illustrative figures, not current offers.

Measure where the containers will live

Measure your shelf height and depth, including the lid and clips. Check the outside dimensions as well as volume: two containers with the same capacity can have quite different shapes. Leave room to lift a container out without moving everything above it.

For cupboards, check how empty bases nest. For the refrigerator, check how filled containers stack. Those are different kinds of space saving.

Check lids and care instructions separately

Airtight and leak-proof are different claims. A seal described for dry pantry goods should not be assumed safe for carrying soup in a bag. Look for explicit guidance for the use you have in mind.

Manufacturers may also give different instructions for bases, lids, latches and removable seals. For example, Rubbermaid’s medium rectangular Brilliance glass set lists oven suitability for its glass bases. That does not make the lids oven-safe, or establish the instructions for every Brilliance version. Read the exact product directions.

Options to explore in our catalog

• Rubbermaid Brilliance plastic, selected 3.2-cup set for comparing repeated container sizes.
• Rubbermaid Brilliance glass, assorted-size set for comparing a glass option.
• Rubbermaid EasyStore 44-piece set for checking a larger assortment and its base-versus-lid count.

Confirm the selected pack, specifications, care instructions and current price on Amazon. These are research references, not independently tested recommendations or a ranking of the best products.

Keep exploring

Read our five useful kitchen finds or browse Kitchen & Dining.

Common questions

Cover image is an AI-generated topic illustration. This guide uses listing research and shopping guidance, not hands-on testing.