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.
The new items that they introduced were called âbiscuits,â though they were the forerunner of what we now consider to be sponge cake. 1615 â Gervase Markham (1568-1637), English poet and author, recorded the earliest sponge cake recipe in English in 1615.