Featured in The Unplastic Shop, curated with the producers of The Plastic Detox to reduce your daily exposure to microplastics.

The Black + Blum Steel Food Box is a rectangular, microwaveable stainless steel lunch box with a gray plastic lid and a red vent button in the center, shown on a white background. Text graphic reads: The Unplastic Shop. Curated by the Oceanic Preservation Society — the production team behind The Plastic Detox, now streaming worldwide — to reduce plastic exposure where it matters most. The Black + Blum Steel Food Box, featuring a microwaveable stainless steel body, gray plastic lid, and red silicone valve for leakproof storage, is displayed side by side on a white background. A hand puts the Black + Blum Steel Food Box with a plastic lid into a microwave. “MICROWAVE-SAFE STEEL” appears below, emphasizing this leakproof lunch box as a smart food storage choice. A close-up of a red car door lock switch with a locked padlock icon in a grey panel—secure as the Steel Food Box by Black + Blum.
Beyond Plastic No Single Use Plastic
The Black + Blum Steel Food Box is a rectangular, microwaveable stainless steel lunch box with a gray plastic lid and a red vent button in the center, shown on a white background.

Black + Blum Meal Prep Stainless Steel Food Box

1 item

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Durable design built for long-term daily use.
  • Convenient all-in-one function for meals on the go.
  • Airtight seal keeps food fresh and prevents leaks.
$26.95 $26.95 Save 0%

Meal Prep Stainless Steel Food Box $26.95

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

These microwavable meal prep steel boxes are leak proof, dishwasher and oven-safe, and come in a range of sizes for breakfast, lunch, and everything in between. Lightweight, airtight and durable, they are perfect for meal prep, food storage, or simply eating on-the-go. Choose between small, medium and large sizes for different meal types or portion control.

Various sizes: Small: 20 fl oz, Medium 30 fl oz, Large 40 fl oz

    • Innovative microwave-safe steel box

    • Leak proof + airtight vacuum-sealed lid lock keeps food fresher for longer

    • Compact storage: All boxes and lids are stackable

    • Semi-transparent silicone lid to see your meals clearly

    • Dishwasher/Oven(exc. lid)/Freezer-safe

    • Easy-clean: fully removable seals

    • High performance: lid lock vent means lid can stay on when microwaving which reduces heat time (compared with other stainless steel containers), and prevents splattering (no need for single-use cling film)

    • Multifunction: meal prep, food storage, on-the-go lunch box, oven container

    • BPA-Free

    18/8 (304) stainless steel, Silicone, Polypropylene

    All parts are dishwasher safe. Lid on the top rack only. Handwashing will prolong the lifespan of the product.

    Grove Values

    A collection of eco-friendly household items including a metal lunchbox, reusable bamboo utensils, toothpaste tablets, bamboo toothbrush, dish scrub, cleaning cubes, dish soap, and colored pencils, all arranged on a wooden board.
    The unplastic shop

    Curated to reduce plastic exposure where it matters most

    Everything in this shop meets expert-backed criteria developed with the Oceanic Preservation Society prioritizing reduced plastic where it counts most.

    ✓ Plastic never touches anything you ingest

    ✓ Free from BPA and all “BP” alternatives

    ✓ Free from PFAS and other “forever chemicals”

    ✓ Selected to avoid endocrine-disrupting chemicals (EDCs) and other chemicals associated with hormone disruption

    Download the Standards