Salt Shakers Holes. If you still insist on coarse salt and pepper, you can always take a dremel to your shakers and widen the holes! Therefore, the salt shaker should have more holes in order to improve the flow, while a pepper shaker should do all right with fewer holes.

And they are usually in different sizes but not larger than a mug. Pepper shakers are containers that have holes on the top side used to sprinkle pepper onto a meal. Even the blue and green shakers, which are made by the same manufacturer, can't agree: