Are Black reCAP Mason Jar Lids Safe?

If you've seen headlines about black plastic kitchenware and recycled materials, you're right to ask questions and we want to give you real answers, not just reassurance.

The concern: Some black plastic products, especially those made from mixed recycled sources, have been found to carry traces of flame retardants from recycled electronics or other non-food-grade materials. A 2019 study in Environmental Science & Technology raised exactly this concern.

How reCAP keeps things safe:

• FDA-approved, food-safe plastic: Every reCAP lid, including black, is lab-tested and made from materials compliant with Title 21 of the Code of Federal Regulations (21 CFR 174-178), the standard governing plastics in contact with food.
• No external recycled plastic: Rather than sourcing from outside recycling streams (which are hard to trace), reCAP uses virgin material plus a closed-loop process that only recycles our own manufacturing scrap.
• Third-party lab testing: Our materials are continuously evaluated, and our tightly controlled supply chain removes the guesswork that comes with unknown recycled sources.

A few general tips for plastic kitchenware: 

• Avoid High Heat: Plastic can break down at high temperatures and potentially release chemicals into food. Stick to glass or ceramic when cooking in microwaves.
• Hand Wash or Use Low-Heat Settings: Dishwashers can expose plastics to high heat, so washing by hand or using lower dishwasher settings can prolong the life of your lids.
• Discard Damaged Lids: If your lid is scratched or shows signs of wear, recycle it to prevent any risk of contamination.

Shop with confidence: Our commitment to transparency and safety extends throughout our product line. We want you to enjoy the convenience and versatility of Mason jars without worrying about hidden dangers in the plastic lids you use. Hence, every reCAP lid, black included, is built to meet strict food-contact standards so you can reuse, refill, and reCAP worry-free. Shop the Seven-Piece Starter Set →

More questions? Visit our reCAP FAQ page.