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Two Black+Blum 500ml stainless steel leakproof boxes with a bamboo lid/chopping board and nylon strap
Adult picking up food from a Black+Blum stainless steel leakproof bento box held by another person
Adult hand reaching into a Black+Blum stainless steel leakproof bento box filled with food
All Elements of Black+Blum Leakproof Bento Box Lunchbox demonstrating how each piece fits together.
Two open Black+Blum 500ml stainless steel leakproof lunchboxes showing fresh salad inside both
Adult hand putting a Black+Blum stainless steel leakproof bento box in a backpack
Adult putting in two Black+Blum stainless steel leakproof bento lunchboxes in a backpack
An open Black+Blum 500ml stainless steel leakproof bento box showing a fork and bamboo lid/chopping board
Angled Black+Blum two 500ml stainless steel leakproof boxes with a bamboo lid/chopping board and nylon strap
Two open Black+Blum 500ml stainless steel leakproof lunchboxes showing fresh food inside both
Two open Black+Blum 500ml stainless steel leakproof lunchboxes showing  small jar of milk in one with oats and fruits
An open Black+Blum stainless steel leakproof bento lunchbox showing a fork and bamboo lid/chopping board

Black+Blum Stainless Steel Leakproof Bento Box

£49.95

Black+Blum Stainless Steel Leakproof Bento Box

A leakproof stainless steel bento box set with two stackable containers, a bamboo lid, and a concealed fork.

The Black+Blum Stainless Steel Leakproof Bento Box is a robust lunch box set inspired by the traditional Japanese bento format. It includes two 500ml stainless steel containers that stack neatly together, giving you a flexible 1L total capacity for packed lunches, meal prep, snacks, or food on the go. Developed with bento expert Sara Kiyo Popowa, it also includes five recipes created specially for this design.

Leakproof Lunch Box Storage
Made from 304 / 18-8 stainless steel, each container is 100% leakproof and airtight, helping to keep food fresh and making it easier to carry dressings, dips, or saucier meals with confidence. The silicone seal is removable for more thorough cleaning, and the box is also freezer safe for food storage.

Flexible Bento-Style Meal Organisation
The traditional bento-inspired format makes it easy to separate different foods and build a more organised lunch. Each container holds 500ml, and the stainless steel slider divider helps you adjust the internal space to suit different ingredients. You can use one box on its own for a lighter meal, or stack both together for lunch and snacks, breakfast and lunch, or a larger packed meal.

Thoughtful Design Details
The bamboo lid adds extra function to the design, doubling as a chopping board or serving board when needed. A concealed fork sits neatly beneath the lid, helping keep your lunch kit compact and easy to carry. Bamboo is also a practical board material because it is dense, holds less moisture than many wooden boards, and is less prone to warping when looked after properly.

Collaborative Design
Use this bento lunch box for rice and curry, salads and toppings, fruit and yoghurt, or snacks alongside a main lunch. The included recipe leaflet adds extra value too, with five recipes developed specifically for this design by Sara Kiyo Popowa. At Babipur, we're proud to be stocking Black+Blum's unique and expertly designed lunch boxes, meal prep containers, and outdoor dinnerware. 

  • Two 500ml stainless steel leakproof containers
  • 1L total capacity
  • Traditional Japanese bento-inspired format
  • Made from 304 / 18/8 stainless steel, bamboo, food-safe polypropylene with 20% PEFC wood fibre, silicone, and nylon elastic
  • 100% leakproof and airtight design
  • Includes stainless steel slider divider
  • Includes concealed fork
  • Bamboo lid doubles as a chopping board or serving board
  • Includes 5 recipes developed for this design
  • Dishwasher safe except for the bamboo lid
  • Freezer safe
  • BPA-free
  • Weight: 510g
  • Dimensions: L 18.5cm x W 9.7cm x H 12cm
  • High-grade materials - Made from 304 / 18/8 stainless steel for strength, rust resistance, and repeated use
  • Renewable material - The bamboo lid uses a fast-growing natural material that works well as a compact food board
  • Minimal plastic use - Plastic is kept to a minimum and used only where needed for sealing, structure, and function
  • Safer materials - BPA, BPS, and phthalate free for added peace of mind
  • City Harvest partnership - Black+Blum support City Harvest, who work across the UK supply chain to collect and share surplus food before it goes to landfill.

How do I care for the bamboo lid?
Wash the bamboo by hand with hot soapy water, dry it thoroughly after cleaning, and do not leave it soaking. If you use it regularly, a food-safe mineral oil can be applied about once a month to help prevent drying and cracking.

Warning: Do not microwave this bento box.



  • 1% for the planet member
    1% for the planet member
  • recyclable
    recyclable

Fast shipping worldwide shipping

No quibble 60 day returns

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Black+Blum Stainless Steel Leakproof Bento Box

£49.95

Black+Blum - Meal Prep Made Easy

Black+Blum creates durable, design-led lunchware and hydration products made to last a lifetime. Using high-quality materials like 304 stainless steel and natural bamboo, their range supports low-waste living through practical, reusable design. From leakproof food containers to charcoal-filtered water bottles, every product is BPA-free and thoughtfully engineered for performance and longevity. Black+Blum also donates 1% of all sales to food waste charities such as City Harvest, helping to rescue surplus food, reduce emissions and support communities in need.
Black+Blum - Meal Prep Made Easy
Behind the Brand

Behind the Brand

Founded in 1998 and relaunched in 2014 by designer Dan Black, Black+Blum has grown into a leading name in sustainable food and drink containers. Every product is designed in-house at their London studio with care, creativity and purpose. With a commitment to reducing single-use plastic and food waste, Black+Blum’s mission is to make everyday routines more considered, enjoyable and eco-conscious. Through their support of 1% for the Planet and focus on responsible material choices, the brand continues to innovate both in the quality of their products as well as sustainability.
About us

Equality Through Fairtrade

Together, we can make trading fairly with farmers and labourers the norm- because it should be! At Babipur we want to tackle unequally divided supply chains, and ensure that the workers making our products are paid fairly and treated with respect. 

Ethical Focus

At Babipur, we thoroughly look into each and every brand stocked in our store so that you don’t have to! Bringing together a range of sustainably sourced and exploitation-free products for all the family, we aim to make our customers feel confident that they are consuming ethically at Babipur.

An Indie Business with Great Service

Hey there! We’re Babipur, a small but mighty indie family business nestled at the foothills of Eryri. Since 2007, our awesome team has been here for you, working passionately from our Porthmadog warehouse and offices. Don’t forget to join our buzzing Facebook group and be part of our amazing community. We love helping you with your questions and orders, no matter how big or small.

Shipping & Service

Fast Worldwide Shipping

Here at Babipur we aim to despatch your orders quickly using Royal Mail, Parcelforce, GLS and other couriers. We pack orders Monday to Saturday, if you need an express delivery option we recommend ordering before 1pm for next working day delivery. Tracking details will be sent to you by email or text.

Returns

If something isn't as expected, doesn't fit, or it's simply not right for you, just return it to us within 60 days of delivery for a no quibble refund. We do ask that items are returned in unused condition if you've simply changed your mind. If you have a faulty or damaged item please get in touch, return it to us for a refund or replacement and we'll cover the return costs.

Customer Service

We are here for you! We believe in offering you the very best customer service possible. You can email, direct message us on socials or even pick up the phone Monday to Friday 9-5. We are a small independent business and we'll do whatever we can to help, always. Any questions, queries, issues or suggestions, just get in touch and we'll be happy to hear from you.