As tempting as it is to suggest soaking the jar in water for a couple of hours, I’m not going there.
If the shot is static, you have the option of blurring the image in that area, or replacing the label with a graphic or “decal” keyed over the area that … maybe… looks like what the pickles would have looked like if the label wasn’t there. If the shot is moving around, or the jar is moving, or someone or something interferes with the visibility of the label, then you are into tracking and rotoscoping the VFX.
Sometimes this is described as logo removal, sometimes as “creating a clean plate” but there are likely many online video how-to’s published. There’s probably a way to do it in “Motion”, but I am only familiar with MochaPro and SHAKE.
jPo
“I always pass on free advice — its never of any use to me” Oscar Wilde.