I've Got Them Mashed-Potato Blues (But, Now I Know Why)

There is a potato masher plunger (operated manually) that is available at Bed Bath & Beyond. When you use this, you can limit or exceed the lumps. I use one and it works like a charm. You will never have mashed using this that turns the taters into puree. The mashing unit has an array of 10 thick wires that are triangular shaped. It is hard to describe, but I wouldn't use anything else.