Partigyle is an tried and true method form the old days when drinking the water was unsafe. The British batch sparged, and would collect the second (or more likely third, or fourth) runnings and make "small Beer". Low in alcohol, but safe to drink as it had been boiled, and contained enough alcohol to kill the "critters". Of course they didn't know that, all they knew was if you drank beer you didn't get sick. Small beer could be consumed all day long, even for breakfast, with children drinking it as well. The "Big Beer" was saved for later in the day, and evening. Interesting time to live.