I racked my Estate Zin to a 6 gallon glass carboy on Sat. to bulk age for the next 4 - 6 months. I was very surprised by the fact that racking from a 6 gal. BB which was full to about 2 inches from the stopper, to a 6 gallon glass Italian carboy, I had to top up with over 1 liter of commercial Zin (actually a Zin, Syrah, Cab blend). There wasn't a lot of solids, and I didn't leave much behind in the BB. The Sauv Blanc also took about 800 ml to top off into a second BB.
Seemed like an optical illusion, is this about normal for topping off?
Seemed like an optical illusion, is this about normal for topping off?