the reason why people believe it contains the same or more caffeine than in hot coffee is because the person drinks the cold brew coffee much faster than a cup of hot coffee. of course, many want the us government to do much more than this. now reading is more limited to a short while in bed before falling asleep, which i do too readily these days so takes an age to read a book. greenhouse production recommended for best environmental controls. it is recorded in the key the booth brothers sang it in. thank you for what you do. 