A "bleed" is when you allow your design to transcend the dimensions of the "finished product." Bleeds ensure that once label paper is cut or a label is peeled up from its liner that your desired color reaches the edge of the label and you don't have any unprinted edges. Bleeds also account for any shifting that occurs throughout the printing process.
We suggest adding a bleed of at least 3.175mm or 1.5875mm to your design. This will account for the slight movement that can occur during the printing process.
Learn how to add a bleed using Maestro Label Designer.