• ECOlunchbox Solo Rectangle stainless steel lunch box wrapped in its green and brown paper product packaging label outside.
  • An empty 29 oz ECOlunchbox Solo Rectangle food container showing its lightweight design and smooth rolled steel edges.
  • For a lifestyle food shot:A fresh sandwich packed neatly inside the single compartment of an ECOlunchbox Solo Rectangle stainless steel lunch box.
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ECOlunchbox

ECOlunchbox Solo Rectangle Stainless Steel Lunch Box

ECOlunchbox Solo Rectangle Stainless Steel Lunch Box

$29.99 USD
$29.99 USD
Sale Sold out
Shipping $6.95 | FREE over $50
  • Zero Plastic, Zero Toxins — 100% Premium Food-Grade Steel
Lid Design:
Our Testing Verdict: Indestructible, Single-Compartment Simplicity
If you are tired of cracked plastic lids and stained storage containers, this 100% stainless steel lunch box is the perfect upgrade. Holding a generous 29 ounces (3.6 cups), the single-compartment layout provides the right amount of space for us to pack a full-sized sandwich, wraps, or dry lunch sides without them getting crushed.

Because it is built entirely from pure stainless steel without any synthetic parts, it is completely unbreakable and exceptionally easy to wash. It has quickly become our go-to choice for packing daily work and school lunches, and it even doubles as a brilliant zero-waste container to bring along to local restaurants for plastic-free takeout orders. We have used it for months and expect it to last a lifetime.

(Please note: To keep this design entirely plastic-free and easy to slip open, the lid does not feature rubber or silicone gaskets. This means it is not intended for very liquid or saucy foods, as it can leak if tipped sideways in a bag. For a 100% leakproof option with clips, check out our Bento Wet Box!)

Why We Love It
  • Pure Toxin-Free Dining
    Crafted entirely without plastic, protecting your food from estrogen-mimicking toxins like BPA, BPS, and phthalates commonly found in synthetic lunch boxes and to-go containers.
  • Smart Portion Control
    The lightweight 29 oz volume offers an ideal baseline for mindful eating and healthy portion management for kids and adults alike.
  • Campfire & Oven Ready
    Unlike plastic or silicone, this rugged steel container can be placed directly into a medium-heat oven or over a camp stove to reheat your meals on the go.

Dimensions
Holds 3.6 cups
4.75" W x 6.75" L x 2" H
Tare Weight: 8 oz. 

Materials
100% 304 (18/8) food-grade stainless steel

What’s Included
1 ECOlunchbox Solo Rectangle Stainless Steel Container with matching lid

Sustainability & Certifications

Eliminating Single-Use Takeout Plastics

Millions of plastic clamshells and styrofoam to-go containers are discarded by restaurants every single day, most of which cannot be recycled and pollute our oceans.

  • Zero-Waste Takeout Hero: This rectangular box is sized perfectly to match standard restaurant takeout portions. Hand it to your server when ordering to-go to completely eliminate single-use packaging.
  • Endless Lifetime Utility: Made from durable, high-quality steel in India, this container will never rust, crack, or absorb food odors, replacing hundreds of disposable baggies and cheap plastic tubs over its lifetime.

Care & How To Use

Cleaning & Thermal Maintenance Instructions

  • Easy Washing: This container and lid are 100% dishwasher safe. Food releases easily from the smooth steel surface without leaving stubborn grease residue or stains behind.
  • Reheating Your Food: The container is completely safe to use in a standard medium-heat kitchen oven or over a portable camp stove for quick meal prep. Use a pot gripper or towel when handling a hot container.
  • Microwave Warning: Never place this stainless steel container - or any metal item - inside a microwave oven, as it will cause permanent damage to your appliance.

FAQs

Is this rectangular lunch box completely leakproof?

No, this specific model is not leakproof. The lid slides on securely for travel but does not use plastic or silicone sealing gaskets. It is perfect for sandwiches, wraps, fruit, crackers, and dry snacks, but we recommend keeping saucy or liquid-heavy foods in a dedicated leakproof container like our Bento Wet Box.

Can children easily open and close this container at school?

Yes! Because there are no heavy latches, tight clips, or suction seals, the all-metal lid slides smoothly on and off the base. This makes it an incredibly user-friendly option for young children opening their school lunches independently without accidental spills.

What does the 8 oz Tare Weight mean?

The tare weight is the exact weight of the empty steel container. If you shop at zero-waste bulk grocery stores, the cashier can subtract this 8-ounce weight from your total at the register, allowing you to pay only for the exact weight of the food you put inside the box.

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