Souper Cubes at Costco: Price, Sizes & Features Explained

Souper Cubes at Costco typically come in an 18-piece set priced between $24.99 and $29.99. These BPA-free, stackable containers are designed for meal prep and food storage, with sizes ranging from 4 oz to 32 oz. The set includes leak-proof containers that are microwave, freezer, and dishwasher safe, making them popular for portion control and organization.

What Exactly Are Souper Cubes?

Souper Cubes represent a modern approach to food storage with their distinctive square design that maximizes space efficiency in refrigerators and freezers. Unlike traditional round containers, these cubes nest neatly together, eliminating wasted space between containers. The complete set sold at Costco contains 18 individual containers across four different sizes:

Container Size	Quantity in Set	Capacity	Dimensions
Extra Small	6	4 oz	2.5" x 2.5" x 1.5"
Small	6	8 oz	3" x 3" x 1.75"
Medium	4	16 oz	3.5" x 3.5" x 2.25"
Large	2	32 oz	4" x 4" x 2.75"

Costco-Specific Product Details

Costco's Souper Cubes set carries the item number 1435287 and typically appears in the kitchenware or food storage section. The containers feature measurement markings on the sides for precise portioning, which proves particularly valuable for meal preppers and those monitoring dietary intake. Each container includes a secure, leak-proof lid that creates an airtight seal, preventing spills and preserving food freshness significantly longer than standard containers.

Unlike many competing products, Souper Cubes maintain structural integrity through repeated use. The thick, durable plastic resists cracking even when frozen solid—a common issue with thinner containers. Customers consistently note the containers' ability to withstand temperature extremes, moving seamlessly from freezer to microwave without warping or releasing chemicals.

Practical Advantages Over Traditional Containers

The square design offers measurable space savings compared to round containers. When organizing a standard refrigerator shelf, Souper Cubes utilize approximately 25% more available space than comparable round containers. This geometric efficiency translates to tangible benefits for meal preppers who prepare multiple portions weekly.

Professional chefs and home cooks alike appreciate the containers' versatility. The 4 oz size works perfectly for spice blends or baby food portions, while the 32 oz containers accommodate full meal portions. Many users report using them for sous vide cooking by removing the lids during the water bath process—a technique not recommended with most plastic containers.

Availability and Purchasing Considerations

Costco typically stocks Souper Cubes year-round, though availability can vary by location and season. During January (peak meal prep season), some warehouses may experience temporary stockouts. The online Costco store generally maintains more consistent inventory, though shipping restrictions sometimes apply due to the set's size.

When checking availability, remember that Costco occasionally rotates between different container brands. If Souper Cubes aren't available, similar products like Sistema or Rubbermaid Brilliance may occupy the same shelf space. The most reliable method to check current stock involves calling your local warehouse's kitchenware department directly, as online inventory systems don't always reflect in-store availability accurately.

Real-World Usage Tips from Experienced Users

Seasoned Souper Cubes users recommend several techniques to maximize their utility. For soups and sauces, filling containers only to the 80% mark prevents messy expansion during freezing. Many meal preppers use colored rubber bands around lids to differentiate between meal types or dietary restrictions.

Cleaning experts suggest hand-washing the lids separately from the containers to maintain the seal's integrity over time. While the containers are dishwasher safe, placing them on the top rack away from heating elements extends their lifespan. For stubborn stains from tomato-based sauces, a paste of baking soda and water left to sit for 30 minutes before washing typically restores clarity.

Comparing Value: Souper Cubes vs. Alternatives

When evaluating cost per container, Souper Cubes at Costco deliver exceptional value. The $24.99-$29.99 price point breaks down to approximately $1.39-$1.66 per container, significantly less than comparable sets at specialty kitchen stores. Glass alternatives like Pyrex typically cost 3-4 times more for a similar quantity.

The investment pays dividends through reduced food waste. Studies show proper food storage can decrease household food waste by up to 25%. For families spending $800 monthly on groceries, this represents potential savings of $200 annually—more than offsetting the initial container cost.

Are Souper Cubes at Costco BPA-free?

Yes, all Souper Cubes sold at Costco are certified BPA-free. The containers use food-grade polypropylene plastic that meets FDA safety standards for food contact and has been independently tested to ensure no bisphenol compounds leach into food, even when exposed to high temperatures or acidic contents.

Can I microwave Souper Cubes with the lids on?

No, you should always remove the lids before microwaving Souper Cubes. While the containers themselves are microwave-safe, the lids contain a silicone seal that isn't designed for microwave use. Microwaving with lids on could damage the seal and compromise the container's leak-proof capabilities.

How long do Souper Cubes typically last with regular use?

With proper care, Souper Cubes typically last 3-5 years of regular use. Factors affecting longevity include frequency of dishwasher use (top rack recommended), exposure to extreme temperature changes, and proper lid storage. Many users report containers remaining fully functional beyond five years when hand-washed and stored with lids slightly ajar.

Do Souper Cubes stack securely when filled?

Yes, Souper Cubes are engineered to stack securely even when filled. The square design with reinforced corners and interlocking lids creates stable stacking configurations. For maximum stability with liquid contents, experts recommend placing heavier containers on lower shelves and avoiding stacking more than three high when containers are full.

Are replacement lids available for Souper Cubes?

Costco does not currently sell replacement lids separately for Souper Cubes. However, the manufacturer offers replacement lid packs through their official website. Some third-party retailers also carry compatible lids, though these may not provide the same leak-proof seal as the original manufacturer's lids.