BY DEBRA J. MORRIS
You’ve just found a new variety of table grape at your farmers market, not the usual Thompson seedless, but a lovely deep Red Globe variety. Or you’ve found the deep blue/black heirloom Concord grape. You’ve just discovered one of the many reasons to shop your local certified farmers market – Variety!
We’re celebrating certified farmers markets and the value they bring to your local community during National Farmers Market Week (August 7 – 13). In fact, we’re celebrating for the whole month of August! The unique varieties of grapes and other fruits and vegetables you buy stimulate local economies, help preserve farmland, and increase access to healthy and nutritional food. Farmers markets also play an essential role in their communities by creating space for community connection and actively fostering more resilient and equitable local food systems.
What does it mean to be a certified farmers market and why is it so important that you shop “certified”? In short, it means that the produce is delivered to the market directly from the farm and from the growers themselves. In California, only California-grown produce may be certified for sale in our state’s farmers markets.
So when you find that unique bunch of plump sweet grapes at your certified farmers market you know it’s locally-grown in California and of high quality. There are many varieties of table grapes grown in California. The freshest and the most interesting varieties are available at your farmers market, like Red Flame, Autumn Royal, Concord seeded, Pearl, Princess, Red Globe, and many others.
Table Grapes vs. Wine Grapes
Have you ever wondered why you can’t take these table grapes home and crush them into wine? Eating grapes are a bit different than wine grapes. Table grapes are from different species and these differences can make for good wine, but not good eating.
The main distinction between grapes for serving and those for the production of wine can be found in the distinct characteristics of taste, acidity and sugar content.
The first difference between these two grapes has to do with their skin thickness. Table grapes have thin skin, perfect for munching away, but not ideal for making wine. When it comes to making great wine, especially red wine, a thicker skin is better, and that means more tannin. Tannins are what adds to wine’s texture and mouthfeel.
Second, the sweetness of the grape is a very important characteristic. Wine grapes are much sweeter than table grapes. The grapes need a lot of sugar if yeast is going to convert juices into alcohol. Higher sweetness comes from the species itself, along with the fact that wine grapes are harvested much later in the season, allowing their sugars to concentrate as much as possible. Wine grapes are harvested at around 22-30 percent sugar while table grapes are closer to 10-15 percent sugar. This also means wine grapes deteriorate much faster when picked than grapes meant for the table.
Finally, the yield of wine grapes compared to table grapes is different. While a winemaker gets about ten pounds of fruit per vine, table grape producers use a trellis system that allows the grape bunches to hang without touching each other, providing the ability to produce thirty pounds of fruit.
Stop by your local certified farmers market this time of year and you’ll find mounds of sweet locally-grown table grapes glistening in the sun. Visit J&J Ramos Farms and Resendiz Farms, both from Hughson for grapes.