Excessively high and low pHs can be detrimental for the use of water. High pH causes a bitter taste, water pipes and water-using appliances become encrusted with deposits, and it depresses the effectiveness of the disinfection of chlorine, thereby causing the need for additional chlorine when pH is high.
Carver's records included the following sweet potato products: 73 dyes, 17 wood fillers, 14 candies, 5 library pastes, 5 breakfast foods, 4 starches, 4 flours, and 3 molasses. He also had listings for vinegars, dry coffee and instant coffee, candy, after-dinner mints, orange drops, and lemon drops.
In 1921, Bill and Sallie Utz started the Hanover Home Brand Potato Chips in Hanover, Pennsylvania. Salie Utz used her knowledge of good Pennsylvania Dutch cooking to make the chips in a small summer house behind their home. The hand-operated equipment Salie used made about fifty pounds of potato chips per hour.