Frequently Asked Questions
Everything you need to know about our sustainable lunchware and hydration solutions.
What materials are used in Black+Blum products?
We prioritize high-quality, durable materials including 304 (18/8) food-grade stainless steel, borosilicate glass, and sustainably sourced natural cork. All our products are BPA, BPS, and phthalate-free.
Are your lunch boxes and water bottles leak-proof?
Most of our designs, such as the Stainless Steel Lunch Box and the Glass Water Bottle, feature high-quality silicone seals that make them 100% leak-proof. Please check the specific product description for the leak-proof icon.
How should I clean and maintain my Black+Blum products?
While many of our components are dishwasher safe, we recommend hand-washing items with wood or cork parts to maintain their longevity. Detailed care instructions are included with every purchase.
What is your shipping policy?
We offer standard and express shipping options. Orders are typically processed within 1-2 business days. Free shipping is available on orders over a certain threshold depending on your location.
What is your return policy?
We offer a 30-day return policy for unused items in their original packaging. If you are not completely satisfied with your purchase, please contact our customer service team to initiate a return.
Do your products come with a warranty?
Yes, all Black+Blum products come with a 2-year warranty against manufacturing defects. This reflects our commitment to creating products that are built to last and reduce single-use waste.