Featured in The Unplastic Shop, curated with the producers of The Plastic Detox to reduce your daily exposure to microplastics.
Three Black + Blum Multi-Function Food Box Mixed Set stainless steel containers (1.2L each) are stacked, each with a clear lid and central red button, designed for airtight sealing or venting. 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 Multi-Function Food Box Mixed Set includes three 1.2L stainless steel boxes with stackable gray lids featuring red accents, perfect for versatile storage of your food essentials. Close-up of a Multi-Function Food Box Mixed Set by Black + Blum, featuring secure compartments and versatile storage, designed for convenience and safe food transportation. A hand places a Black + Blum Multi-Function Food Box Mixed Set (1.2L, stainless steel with plastic lid) into a microwave. Text on image: MICROWAVE-SAFE STEEL 1.2L BOXES.
Beyond Plastic No Single Use Plastic
Three Black + Blum Multi-Function Food Box Mixed Set stainless steel containers (1.2L each) are stacked, each with a clear lid and central red button, designed for airtight sealing or venting.

Black + Blum Meal Prep Box Stainless Steel Set, Mixed Set

3 piece set

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Durable, reusable steel keeps food fresh for all your adventures.
  • A range of sizes for portion control and healthy snacking on the go.
  • Easy to clean material promotes hygiene and worry-free meal prep.
$74.95 $74.95 Save 0%

Meal Prep Box Stainless Steel Set, Mixed Set $74.95

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

These microwavable steel food 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.

Set includes: Set of 3; Small: 20 fl oz, Medium 30 fl oz, Large 40 fl oz

  • Innovative microwave-safe steel box (see FAQs for more info)
  • 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

More from The Unplastic Shop

Shop The Unplastic Shop
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
A flat lay of powdered ingredients, gummy candies, a glass of pink liquid, a gold spoon with powder, and a container with an orange slice label, all on a pastel green background.

Grove Collaborative

10,000+ ingredients reviewed. 3,000+ banned outright.

Our most comprehensive standards yet — across your whole home.

Explore Our EU-Informed Ingredient Standards