When you add some vessels to your vintrace database you will be emailed a set of QR codes for those vessels.
You can scan them in the app by tapping the Barcode button from the main page.
This will then open up your devices camera allowing you to scan the code attached to your vessel.
This will then show you the details of the wine it holds and allow you to add tags, labs and notes.
For information on recommended printers and labels please read our guide.