Frequently Asked Questions
Everything you need to know about our sustainable food and drink containers.
What materials are Black+Blum products made from?
We prioritize high-quality, durable materials such as 304 stainless steel, hand-blown borosilicate glass, and sustainably sourced cork. All our products are BPA-free and designed for longevity.
How long does shipping take?
Standard shipping typically takes 3-5 business days. Express shipping options are available at checkout if you need your items sooner.
Are your lunch boxes leak-proof?
Yes, many of our designs, such as the Stainless Steel Lunch Box and Glass Lunch Bowl, feature high-quality silicone seals and secure closures to ensure they are 100% leak-proof.
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 support team to initiate a return.
Are Black+Blum products microwave and dishwasher safe?
Our glass and polypropylene ranges are microwave safe. While many of our products are dishwasher safe, we recommend hand-washing certain components like wood lids and vacuum-insulated flasks to preserve their lifespan.
Do you offer a warranty on your products?
Yes, we offer a 2-year warranty against manufacturing defects. This reflects our commitment to creating products that are built to last and reduce environmental waste.