How many glasses in an average bottle of wine depend on the amount of wine and the size of the glass.
Most wine comes in a 750 ml bottle or a 1.5 liter bottle. In a 750 ml bottle of wine, there are approximately five average glasses of wine (based on a 5 oz. standard pour), A 1.5 L bottle doubles the amount of wine from the more common 750 ml bottle, so it works out to 10 glasses of wine in that size.
White Wine vs. Red Wine
Because of the differences in white wine and red wine, there are different glasses for each as well. White wine glasses are different in size and shape from red wine glasses. White wine glasses hold 12 fluid ounces, while red wine glasses are slightly larger and can hold about 12-14 fluid ounces. The glasses are different in order to serve the wines. White wine glasses usually have a slightly tapered, shorter design. Red wine glasses have a larger bowl and are taller, allowing the bolder aromas and flavors of reds to arise
New wine packaging trends have emerged, allowing wine to be being offered in a wider variety of formats. Industry trends show that wine in glass bottles is still the dominant form of packaging for wine in the US. However, a growing mix of different packaging formats are on the rise. These include plastic bottles, screw top wine bottles, individual cans, and big-in-boxed (large and mini).
This rise in alternative packaging for wine is due to changing patterns of wine consumption in US society. Younger consumers are looking for easier and convenient options to open and drink wine. Without carrying cork openers, these younger consumers may look to alternatives to traditional corked bottles.
While 5 oz is the standard wine pour, that number can change due to the alcohol by volume for a particular wine. The National Institute of Health offers some helpful guidelines to determine the amount of alcohol in drinks of standard sizes, from table wine to spirits.
The higher the alcohol content in a bottle of wine determines the size of the pour. Lighter white wines like Rieslings or Pinot Grigios offer alcohol by volume (ABV) between 8 percent to 11.5 percent. Bolder red wines like Cabernet Sauvignon, Merlot, and Pinot Noir have a higher ABV, between 12 percent and 15 percent.
When a wine’s alcohol content rises, wine pours will get smaller to stay at the standard .6 ounces of alcohol per serving. This matters more in public servings of wine, rather than for sipping at home.
Size of bottle
We mentioned above that most wine comes in 750 ml bottles or 1.5 L bottles. However, wine is sometimes served in half-bottles (375 ml) and larger than liter sizes. In wine circles, these bottles are named after kings mentioned in biblical stories. For example, a Jeroboam bottle is 3 L, twice the size of a magnum, and offers 20 glasses of wine. A Methuselah bottle is twice that size, offering 40 glasses of wine. And the largest bottle of wine in the world is the 30 liter Midas, which provides 200 glasses of wine!