3D Materials: Getting this jagges white line from Lighting

I am creating a 3d can artwork and the can is a deep black. I had the label with the black in the background, but then I lost the lighting effect so I took the background out since I created the 3d Can Black, but now my lighting has this jaggedness to it from the lighting. I have played with the softness, roughness of material, rendered with ray tracing, change the document raster render settings to 300 dpi. I just need it to be smooth like the can next to it (old design and we are updating) and I am just hitting a wall.