For processes that require accurate measurements within a hundredth of an ounce, a mechanical portion control scale is not the best investment, but they are a good addition to the produce section of a grocery store. Add a few mechanical scales at the ends of aisles for customers to measure the contents of their bags. This is also a good idea in bulk grains and nuts sections as well. When customers are able to get exactly the quantity they need, they feel empowered and leave the store feeling much more positive.