"Sparkling wines lose their coronation quickly after opening," stresses Thralls. "A traditional method sparkling wine such as ...

So there’s no hard-and-fast answer to how many glasses of wine are in a given bottle, but 4.5 ounces per glass splits the difference in standard restaurant pours.

After a stressful day, sometimes all you want is to crack open a bottle of wine. But you'd better make it a generous pour - as a scientist claims it's only safe to drink one glass a year.

In practice this means that a 750 ml bottle of wine (the most common size) holds enough wine for 5 glasses.While you'll rarely see anyone whipping out a measuring cup before pouring a glass of ...