First Bladder Press Use (Seminary View Vineyard and Winery)
In this video we are making use of our new bladder press. We are using it here to press the juice off of our small Chambourcin grape harvest. Enjoy!
In this video we are making use of our new bladder press. We are using it here to press the juice off of our small Chambourcin grape harvest. Enjoy!
This video shows how we press grapes after they have been crushed and destemmed. After pressing, we end up with 100% juice, which we transfer into vats (usually 32-gallon vats), where the majority of solids fall out to create what is called the gross lees.
At the end of the fermentation, the wine will have extracted everything it needs from the seeds and skins. When this is completed, it is time to press. It is important to press in a timely fashion because prolonged exposure to grape solids post-fermentation might cause reactions that could generate off-flavors and otherwise ruin the wine.
Wine has been made by humans for about 7,000 years, and experts agree that until quite recently it may not have tasted very good. For millennia wine has been the ultimate expression of agriculture.
There are basically two types of wine press in the world: Basket Presses (also called Ratchet Presses) and Bladder Presses. The essential concept behind a wine press is to separate the juice or fermented wine (depending on if you’re doing reds or whites) from the skins, seeds and pulp that make up the solid parts of the grape.
Sports teams have playoffs. Students have finals. And for winegrowers, the big sink-or-swim moment—the event the whole year’s efforts have led up to—is harvest. The period culminating in grape crush begins when the grapes start to change color in mid to late summer. The actual picking of the grapes usually happens between August and November above the equator and February to April below.
Foot treading is anything but the homey, silly dance most drinkers imagine when they think of traditional grape-stomping rituals. In reality, foot treading is far more work than modern methods for crushing grapes, though it starts the winemaking process off as efficiently as more advanced and modern methods.
Aim for harvesting on a cool, dry day, as dry grapes will store longer than wet grapes. There are a couple different harvesting tools to choose from. One option is to use sharp pruning shears/clippers (we prefer the more scissor-like trimmers with narrow tips) rather than pulling clusters by hand, as this will ensure you’re not damaging the vine or knocking off other clusters.
Crushing the wine grapes is a very straight forward process. All you do is burst the skin of each grape. This is necessary to release the juice. It also allows the yeast and enzymes into the grape to further break down the fiber and release even more juice along with flavor and body elements that will make up the character of the resulting wine.
Ever wonder about how your favorite Cabernet, Pinot Noir or Pinot Grigio gets made? You’re in luck! There are an array of winemaking kits to help you learn how to craft your own wine from the comfort of your home. No vineyard required.
“Wine is one of the most civilized things in the world and one of the most natural things of the world that has been brought to the greatest perfection, and it offers a greater range for enjoyment and appreciation than, possibly, any other purely sensory thing.” – Ernest Hemingway
WineMaker is “the” trade publication geared toward those starting out, hobbyists, and intermediate winemakers. As a hobbyist, you can’t afford not to have a WM subscription. The cost is nominal at under $50 annually, which also provides online access to all articles and reference materials.