Author of the book, Alcohol Fuel,” Richard Freudenberger teaches us the hands-on details of small scale alcohol fuel production (ethanol). Richard describes the processes involved and the distinctions between different types of alcohol, decisions about effective types of feed stocks to use and how you can integrate this technology into your farm/garden/homestead. Learn the pros and cons of the technology and glean pertinent knowledge to help you begin utilizing alcohol fuel. In part 5, Richard starts with a refractometer to measure the sugar content of the alcohol fuel and what that means for fuel efficiency.