Learn more about the "Key to Wine" red wine set

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Iconic Set to Celebrate the 20th Anniversary of RIEDEL "O"

RIEDEL "The Key to Wine"


RIEDEL has conducted research

on grape varietal perceptions

leading to the consensus agreed upon by wine experts worldwide:

that the enjoyment of a wine's aroma, taste, texture, and finish is optimized when the right "WINE TOOL" is employed - THE KEY TO WINE!
4000x2100_key-Pinot Noir

Key to Wine

thin-skinned grapes

like Pinot Noir, Gamay, Nebbiolo, Champagne

Grapes with thin skins result in wines with a lighter color and body compared to thick-skinned grapes. Thin skins yield lower levels of tannins, making these wines smoother and less astringent. These wines are often described as having a silky or velvety texture on the palate. Thin-skinned grapes are more susceptible to environmental factors, which can be both an advantage and a challenge. It allows the grapes to express their unique terroir, but it also makes them more delicate and harder to cultivate.


Key to Wine

medium-skinned Grapes

like Syrah, Shiraz, Blaufränkisch, Sangiovese, Tempranillo, Grenache

Medium skin thickness provides these wines with a moderate level of tannins, resulting in wines that have very good balance and structure. Such wines can be both robust and approachable, offering a mix of red and black fruit flavors. The medium skin also allows the grapes to adapt to a wider range of climates and terroirs, resulting in versatile grape varieties suitable for growing in various wine regions around the world.


Key to Wine

thick-skinned Grapes

like Cabernet Sauvignon, Cabernet Franc, Merlot, Petit Verdot

The thick skin contains high levels of tannins and pigments, which influence
the wine's flavor and aging potential. Tannins are compounds found in grape skins, seeds, and stems that contribute to the wine's structure. The thicker skin provides a significant amount of tannins, resulting in a wine with a firm, often grippy tannic structure. The thick skin also helps protect the grapes from environmental factors, making such grapes more resilient and suitable for aging. This contributes to the wine's ability to develop complex flavors over time. 

Key to Wine!

Unlock a wine's individual characteristics

CAUTION: This is a grape varietal-specific wine tool; therefore, please take the time to go through this brief guide. It will assist you in unravelling the art of using your set, enabling you to unlock the full spectrum of delights offered by red wine.
We are happy to introduce the "The Key to Wine" Tasting Set to wine lovers and enthusiasts around the world. This is the perfect tool for a RIEDEL ‘at home’ wine glass experience with friends and family, and as a training tool for professionals.

Maximilian J. Riedel, 11th Generation

Unbelievable, it’s the 20th anniversary of my Riedel "O" Wine tumbler. In 2004, I grabbed the attention of the wine and tabletop industries with the introduction of my "O" series. People were quick to embrace a glass that offered all the enjoyment that Riedel is famous for yet was more casual, easy to use, wash and store and added a playful element to the wine and spirits experience. Today, the "O" collection has grown to include over 15 different glass shapes - six variety-specific, sparkling wine, sake, spirits, water, and Gin. The success of "O" is easy to understand casual, contemporary, and chic, perfect for those who crave elegant and uncomplicated designs. Our German production site in Amberg was able to produce to date close to 100.000.000 "O" tumbler

Maximilian J. Riedel, CEO