Never discard it! It is wine after all :0) I usually return mine, unless like dralarms noted it is time for a taste. Sometimes I return the majority and sample the remainder. Usually you won't affect the overall level by much, but like Tony said, keep an eye on the liquid level in your carboy in case you need to top off.
Now I don't understand that. I'm not drinking out of a dirty glass and I'd wager that your mouth has more bacteria in it than using a unsanitized glass.
Now I don't understand that. I'm not drinking out of a dirty glass and I'd wager that your mouth has more bacteria in it than using a unsanitized glass.
Great point. I put my wine into a beaker, not directly into a glass. Anything in the glass is gone, while wine remaining in the beaker is returned. I'm sensitive to not topping more than necessary so I generally don't drink more than a taste and use a small tasting glass.