Dr. Vinny at WineSpectator reports that it takes on average about 700 grapes to fill one bottle of wine. However, it’s important to keep in mind that not all grapes are created equal. Smaller grapes tend to have more solids and less liquid. If individual grapes are small when they’re freshly picked, more grapes will need smoooooshing to fill a bottle of wine. Larger grapes will almost always yield more grape juice.
Taking this a few steps further, grapes come in all sorts of varieties. Grape varietals not only exist in different shapes and sizes, but also vary in skin density, sugar content and pit size. To add even more variables into the equation, terroir and climate play a major role in determining not only the size of a grape, but the quantity and quality of the juice it will yield following a harvest. Separately, vintners vinify their product in different ways. Wine makers macerate grapes at varying temperatures and intensities. These methods are chosen by the vintners for specific reasons to attain a particular end product.
How Many Grapes are in a Barrel of Wine?
A barrel of wine will have 60 gallons of grape juice inside. Give or take a few drops. 60 gallons of grape juice comes from 740 lbs of grapes — giving you roughly 25 cases of wine.
More Wine and Grape Math:
- 1 ton of grapes fills about 2.5 barrels of wine, or 700-720 bottles of wine
- Around 2.4 pounds of grapes go into 1 bottle of wine
- There are between 59-60 gallons of grape juice in a barrel of wine
- 60 gallons of grape juice will fill 25 cases of wine
- There are 300 bottles of wine in 25 cases
- There are 12 bottles of wine in 1 case
- One acre of grape vines will produce anywhere from 2-7 tons of grapes — depending how the vines are spaced, the type of varietal and growing conditions
Keep in mind the above calculations should be taken with a grain of salt because there are so many factors involved depending on the wine maker. But there you have the standards!