Multi-Function Food Box Square

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.

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

-Microwave-safe: These steel boxes are safe to use in the microwave, thanks to the high-quality stainless steel and smooth, rounded design.
-Ensure you do not use in older 915 Mhz microwaves. Always wash all parts with warm, soapy water before the first use.
-Do not place any cutlery, foil, or metal surfaces in the microwave with the box. Avoid heating extreme temperature foods like popcorn or sugar, as these can cause burn marks.
-Heat for a maximum of 2 minutes at a time, stirring and repeating if necessary. The lid lock must be open when microwaving to allow steam to escape.
-Microwave safe up to 1000W. The box may become hot, so use oven gloves or a tea towel when removing it.
-Do not use the box in the microwave when empty.
-Dishwasher, freezer, and oven safe (base only). Do not overfill when freezing to prevent liquids from expanding.
-Leak-proof: The vacuum-sealed lid lock ensures the box is 100% leak-proof and airtight.
-To open, press the button to release the lid lock and pull the lid upwards slowly.
- Avoid using sharp objects directly on the steel to prevent scratches. Clean with warm soapy water and remove the seals and lid lock valve for deep cleaning. Do not use bleach, abrasive cleaners, or scrubbers.

Specifications:
-Stainless steel (304/18-8), BPA free polypropylene, Silicone.
-Small - 1.1L - 19.5cm x 19.5cm x 5.8cm - 310g.
-Large - 1.4L- 19.5cm x 19.5cm x 7.7cm - 320g.