I'm trying to create this "jelly bean factory" scene from Cgshortcuts's amazing course, but for some reason, the jelly beans are really dark in the glass jar while the other part of the scene is well light.
I'm unable to download the file. The link seams dead.
One thing to check if you are using standard or physical renderer is the "Ray Depth" setting under the Options tab in the render settings.
If you have ambient occlusion turned on then this could be effecting the look also.