Each product we make is associated with a specific batch or date code for traceability and transparency purposes. Our tincture boxes are marked with a QR code sticker with the batch code so you can easily scan the product and immediately bring up the lab results. If you are unsure about your code or date of manufacture, or you have general questions about how to read and interpret a Certificate of Analysis (CoA) please reach out to us by email at hello@soweden.com