---
product_id: 523823822
title: "Lunch Box - Microwavable Stainless Steel, Plastic-Free Lunch box with Leak Proof, Airtight, Lockable Lid - Microwave, Dishwasher and Oven Safe - Large, 1.2l"
brand: "black + blum"
price: "¥8325"
currency: JPY
in_stock: true
reviews_count: 9
category: "Black + Blum"
url: https://www.desertcart.jp/products/523823822-lunch-box-microwavable-stainless-steel-plastic-free-lunch-box-leak
store_origin: JP
region: Japan
---

# 100% airtight & leak-proof seal 1.2L capacity - generous meal size Plastic-free, eco-friendly stainless steel Lunch Box - Microwavable Stainless Steel, Plastic-Free Lunch box with Leak Proof, Airtight, Lockable Lid - Microwave, Dishwasher and Oven Safe - Large, 1.2l

**Brand:** black + blum
**Price:** ¥8325
**Availability:** ✅ In Stock

## Summary

> 🥡 Elevate your lunch game—sustainably stylish, leak-proof, and ready for anything!

## Quick Answers

- **What is this?** Lunch Box - Microwavable Stainless Steel, Plastic-Free Lunch box with Leak Proof, Airtight, Lockable Lid - Microwave, Dishwasher and Oven Safe - Large, 1.2l by black + blum
- **How much does it cost?** ¥8325 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/523823822-lunch-box-microwavable-stainless-steel-plastic-free-lunch-box-leak)

## Best For

- black + blum enthusiasts

## Why This Product

- Trusted black + blum brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak-Proof Lockable Lid:** Vacuum-sealed silicone ring guarantees zero spills, keeping your meals fresh and secure.
- • **Lightweight & Stackable:** Effortless portability and space-saving storage for the modern professional on the move.
- • **Eco-Chic Meal Prep Essential:** Ditch single-use plastics and join the movement with a reusable lunch box that speaks volumes.
- • **Sleek Stainless Steel Durability:** Crafted from premium 18/8 stainless steel for a lifetime of stylish, sustainable use.
- • **Microwave, Oven & Dishwasher Safe:** Heat, clean, and prep with zero hassle—designed for your fast-paced lifestyle.

## Overview

The BLACK + BLUM Lunch Box is a 1.2L microwavable, dishwasher, and oven-safe stainless steel container featuring a 100% airtight, leak-proof lockable lid. Lightweight yet durable, it’s designed for professionals and families seeking a plastic-free, eco-conscious meal prep solution that combines convenience with sustainability.

## Description

Black+Blum Stainless Steel Lunch Box The Black+Blum Stainless Steel Lunch Box is the perfect meal prep companion for kids and adults, offering a microwave, dishwasher-safe solution for lunches on the go. Designed with high-quality 18/8 stainless steel, this durable and eco-conscious lunchbox is built to last. The vacuum-sealed, airtight lid with a secure silicone ring ensures your meals stay fresh and prevents spills, making it ideal for work, school, or outdoor adventures. Its lightweight yet tough construction won’t bend or break, while the stackable design allows for easy storage. Unlike plastic alternatives, this stainless steel food container is oven-safe (excluding lid), freezer-safe, and crafted with smooth, rounded edges for effortless cleaning. Available in three sizes—Small (600ml) Medium (900ml) and Large (1.2L)—this microwavable lunch box is the better choice for those who value quality, convenience, and sustainability. Whether you're looking for a leak proof food container, or a lunch box for adults and kids, the Black+Blum Lunch Box is designed to meet your needs while helping reduce plastic waste.

Review: Perfect - 👍👍👍
Review: Good material - No discolouration or deformation after 100 heating uses in microwave. Requires only 1 minute of microwave heating

## Features

- STAINLESS STEEL LUNCH BOX – Elevate your mealtime with our sleek, high-quality microwavable stainless steel lunch box. These reusable meal prep containers for adults or kids are available in three sizes (small, medium, and large). Perfect for breakfast, lunch, and snacks on the go
- DESIGNED FOR CONVENIENCE – Crafted from 18/8 stainless steel, this microwave and dishwasher safe lunchbox ensures easy heating and cleaning. It’s also oven-safe (excluding lid), freezer-safe, and built with a smooth, rounded surface for added durability and style
- 100% & AIRTIGHT & LEAK PROOF LUNCH BOXES – Featuring a vacuum-sealed, leak proof lid with a secure silicone ring, this food container keeps your meals fresh while preventing spills. Ideal for work, school, picnics, or meal prep
- LIGHTWEIGHT YET DURABLE – Built tough but lightweight for easy transport, our single-walled stainless steel lunch box makes for a perfect food container that won’t bend or break. Plus, its stackable design makes storage effortless
- THE BETTER CHOICE - Ditch single-use plastics and make the better choice with our reusable, high-quality reusable lunch box to have with you on the go, always

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BYPFQJ85 |
| Best Sellers Rank | #22,654 in Kitchen ( See Top 100 in Kitchen ) #243 in Lunch Boxes |
| Brand | BLACK + BLUM |
| Brand Name | BLACK + BLUM |
| Capacity | 900 ml |
| Closure Type | Twist Lock |
| Color | Black |
| Colour | Black |
| Container Shape | Rectangular |
| Customer Reviews | 4.5 out of 5 stars 373 Reviews |
| Food Storage Container Airtightness | Airtight |
| Included Components | Box, Lid |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | Yes |
| Item Dimensions L x W x H | 19L x 14.3W x 7.3H centimeters |
| Item Form | Box |
| Item Type Name | Multi-function container |
| Item Volume | 900 Milliliters |
| Item Weight | 0.27 Kilograms |
| Lid Material | Polypropylene |
| Manufacturer | Black+Blum |
| Material | Stainless Steel Polypropylene Silicone |
| Material Features | BPA Free, Is food safe |
| Material Type | Stainless Steel Polypropylene Silicone |
| Material Type Free | BPA-Free, Phthalate-Free, Other Plastics-Free |
| Material features | BPA Free , Is food safe |
| Other Special Features of the Product | Air Tight, Dishwasher Safe, Freezer Safe, Leak Proof, Microwave Safe |
| Package Quantity | 1 |
| Product Care Instructions | Dishwasher safe, Microwave safe |
| Product dimensions | 19L x 14.3W x 7.3H centimeters |
| Recommended Uses For Product | Dry foods, Pasta, Rice, Bread, Fruits, Vegetables, Cake, Pastry |
| Size | 900ml |
| Specific Uses For Product | [INFERRED] workplace lunch, [INFERRED] school lunch, [INFERRED] picnic, [INFERRED] outdoor activities, [INFERRED] meal prep, [INFERRED] takeaway food storage, [INFERRED] food preservation |
| Unit Count | 1 Count |

## Product Details

- **Brand:** BLACK + BLUM
- **Capacity:** 900 Milliliters
- **Colour:** Black
- **Material:** Stainless Steel Polypropylene Silicone
- **Material features:** BPA Free, Is food safe

## Images

![Lunch Box - Microwavable Stainless Steel, Plastic-Free Lunch box with Leak Proof, Airtight, Lockable Lid - Microwave, Dishwasher and Oven Safe - Large, 1.2l - Image 1](https://m.media-amazon.com/images/I/710LgYRcuFL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by A***A on 4 August 2025*

👍👍👍

### ⭐⭐⭐⭐⭐ Good material
*by S***S on 1 March 2025*

No discolouration or deformation after 100 heating uses in microwave. Requires only 1 minute of microwave heating

### ⭐⭐⭐⭐ Good, could be better.
*by H***I on 2 October 2025*

Was hesitant to put this in the microwave at first but it seems fine. I just make sure not to set the microwave timer more than 1 minute each turn. Container is light so its good alternative to my glass lunch containers. Not sure what's the grade of the stainless steel in this product is but there's now some discolouration inside the containers after I stored dishes with vinegar.

## Frequently Bought Together

- BLACK + BLUM Microwavable Stainless Steel Lunch Box | Multi-Function, Vacuum Sealed Container for Healthy Food | Portable and Stackable Food Storage for Office and Outdoor | 30 oz / 900ml
- Black+Blum Nesting Cutlery Set | 3 Piece Stainless Steel Compact Travel Cutlery Set (Knife, Fork, and Spoon) Portable Tableware with Snap Shut Case, Silver
- Black+Blum Insulated Lunch Bag, 6.7L - Leak Proof Bag for Adults and Kids with Roll Top Construction - Made with Recycled PET and BPA Free - Food Bag for On The Go, Slate

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**Shop now:** [https://www.desertcart.jp/products/523823822-lunch-box-microwavable-stainless-steel-plastic-free-lunch-box-leak](https://www.desertcart.jp/products/523823822-lunch-box-microwavable-stainless-steel-plastic-free-lunch-box-leak)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-08*