weird artifact appear while baking lightmap in unity

Question

I have been baking lightmaps in unity for a model and every time I bake light map weird noise appear in the baked object. I have tried generating UV's in unity and also created lightmap UV's and try to use it but still the issue remains.

these are the noises that appear in the model.

Answer 1

I have finally solve the issue . You just have to go to the material of the mesh and enable double sided illumination .