Frequently Asked Questions
Everything you need to know about our sustainable food and drink containers.
What materials are used in Black+Blum products?
We prioritize high-quality, durable materials such as 304 (18/8) stainless steel, borosilicate glass, and sustainably sourced cork. All our products are BPA-free and designed for longevity to reduce single-use plastic waste.
Are your lunch boxes and water bottles leak-proof?
Yes, the majority of our designs feature high-quality silicone seals that ensure they are 100% leak-proof. Please check the specific product description for the 'leak-proof' icon to confirm for each model.
How should I clean and maintain my Black+Blum products?
Most of our stainless steel and glass components are dishwasher safe. However, we recommend hand-washing lids with wood or cork elements to preserve their finish. Specific care instructions are included with every item.
What is your shipping policy?
We offer standard and expedited shipping options worldwide. Orders are typically processed within 1-2 business days. Free shipping is available for orders above a specific threshold depending on your delivery region.
What is your return policy if I am not satisfied?
We offer a 30-day return policy for unused items in their original packaging. If you receive a faulty item, please contact our customer service team immediately for a replacement or a full refund.
Do you offer a warranty on your products?
Yes, we provide a 2-year warranty against manufacturing defects on all our products. This does not cover standard wear and tear or damage caused by improper use.