I brewed my first batch today (It was as much fun as expected, even though i spilled some of the wort on the floor) and was wondering when to take the hydrometer reading. I took it before I added the yeast and after. My instructions had the hydrometer reading step before the yeast addition so I assumed that was the correct order. My before yeast reading was 1.023 and my after yeast was 1.048. As a newbie brewer which one should I use as my inital specific gravity. Thanks for the help.