Stainless Steel Lunch Box

Every Black+Blum purchase contributes to positive change. As part of the 1% for the Planet initiative, the brand donates 1% of every sale to organisations tackling food waste. These efforts support over 375 community partners, including food banks and soup kitchens, redistributing meals to those in need while reducing greenhouse gas emissions from landfill waste. Plus, their innovative products also help reduce food waste at home, making meal-prepping and storing leftovers more sustainable and convenient.

Founded by Dan Black and Martin Blum over 20 years ago, Black+Blum is a UK-based brand known for innovative, eco-conscious food containers, drinkware, and accessories. Designed with reuse and sustainability in mind, each product is thoughtfully crafted in-house using durable, eco-friendly materials where possible. With over 25 global design awards and a presence in 60+ countries, Black+Blum blends style and function to inspire sustainable living and create products people love to use and proudly own.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

-To open the Stainless Steel Box and release the vacuum, pull the valve upwards. Then, separate the lid by pulling at a corner or short side. Be careful when the box contains liquids.
-The Stainless Steel Box is leak-proof. Ensure the base edges and silicone seal are clean and dry. Firmly push the lid down on all sides, press the valve down, and secure with the silicone strap.
-Do not use the Stainless Steel Box in the microwave.
-The base is oven-safe, but the lid is not. Using the box in the oven may cause discolouration.
-The Stainless Steel Box is freezer-safe for food storage.
-The base, fork, and slider-divider are dishwasher-safe. Wash the lid and strap by hand only. Do not use bleach or abrasive cleaners, as they may dull the finish.