viticultur

The Northern Limit of Viticulture and the Rise of Disease Pressure

2026/9/1

There is a region known as the wine belt. It was considered suitable for wine grape cultivation, spanning roughly 30–50°N and 30–40°S latitude. The Rheingau in Germany sits at 50°N. This region was long regarded as the northern limit of viticulture. That …

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viticultur

Biostimulants | A Category That Need Not Explain Why It Works

2026/8/21

The word “biostimulant” turns up more and more often on the shelves of agricultural and horticultural suppliers, and not only in viticulture. The descriptions on those shelves tend to run along the lines of invigorating the plant, or activating it. When t …

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grape-variation

Dismantling the Piwi Safety Myth: What Resistance Genes Can and Cannot Do

2026/7/2

The word “Piwi” increasingly needs no explanation. It has become a trend term in winegrape growing. Piwi is an abbreviation of the German Pilzwiderstandsfähige Rebsorten, meaning fungus-resistant grape varieties. These varieties are presented as having be …

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viticultur

The Overlooked Crisis in the Vineyard: Heading Off a Second Phylloxera Catastrophe

2026/6/27

Climate change and global warming are reshaping how wine is made. Winters have grown shorter and warmer, and budbreak now arrives earlier in the season. As a result, damage from late frost and hail has become more widespread. Shifts in rainfall patterns i …

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oenology

Winemaking Technique | What Is Cold Maceration?

2026/4/19

Maceration is a winemaking technique with a surprisingly thin body of precise, publicly available information despite its widespread use. This article takes cold maceration (cold soak) as its central case and examines both the commonly cited benefits and …

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qualitycontrol

The Diversity of Brett Reception | Beyond the Defect-vs-Character

2026/4/3

How do you react when Brett comes up in a conversation about wine? Some may wonder why bread appears in the discussion — the resemblance goes no further than the sound of the word. What drifts from the glass is a distinctive smell rarely encountered in ev …

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oenology

Are Dessert Wines Never Red?

2026/3/19

Preferences in wine vary widely, but few people seem to dislike the profound sweetness that characterises dessert wines. Even setting aside Château d’Yquem, the mere thought of a Riesling Trockenbeerenauslese from an exceptional vintage is enough to bring …

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fermentation

A Technique for Controlling Spontaneous Fermentation in Winemaking: Pied de Cuve

2026/2/12

When making one’s own wine, few producers have never hesitated over the choice of whether to ferment with active dry yeast or to rely on indigenous microorganisms—so-called “wild” yeasts—present on grapes and in the winery. If the priority is fermentation …

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viticultur

Pruning Wine Grapevines: Sap Flow and Longevity Through the Lens of Fundamentals and History

2026/1/14

Pruning is one of the most critical operations carried out in vineyards. In viticulture, pruning refers to removing unnecessary shoots and canes that have grown over the season, leaving only those required for the coming production cycle. This work is per …

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oenology wine

Wine and Barrel-Derived Extracts: Phenolic Compounds and Oak-Related Aromas

2025/12/22

This article focuses on the compounds extracted from wooden barrels during wine aging and their effects on wine. Discussions of barrel aging are often reduced to the notion of “oak aroma,” with an emphasis on aromatic attributes alone. In practice, howeve …

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oenology off-flavor viticultur wine

2025/10/11

Wine Off-Flavor | UTA / ATA

You tasted a white wine at a winery or wine shop and liked it enough to purchase it. However, you felt it was still a little early for drinking, so you decided to let it rest a bit longer in your home cellar. Six months later, at the dinner table. You kne …

oenology thorough-explanation vinnatural

2025/12/10

Bio and “Natural”: A Winemaker’s View from the Cellar

Whenever I occasionally post about “natural wine” on X (formerly Twitter), those posts tend to be shared relatively widely for my account size. This simply indicates how many people react to this particular keyword. In recent years, especially in Japan, t …

Brettanomyces bruxellensis

off-flavor wine

2025/7/3

Brettanomyces: The Yeast Behind Brett Off-Flavors in Wine

You open a bottle of wine you’ve been looking forward to and pour it into your glass. As you bring your nose close to enjoy the aromatic bouquet rising from the wine, something seems off. Many of you have probably had this experience. Wine that produces u …

wine

2025/11/9

Glass Shape and Wine Perception: Does Glass Form Alter Wine Enjoyment?

Many wine enthusiasts find their cupboards filled with an extensive collection of wine glasses. Others may appreciate wine bars that serve wines in multiple glass types tailored to different wines. The marketplace offers an extraordinary variety of wine g …

sparklingwine

2025/11/5

The Surprising Truth Behind Sparkling Wine Gushing

When you’re tired from the day’s work, when you want to add a touch of elegance to your everyday life, when you wish to spend quality time with close friends, or when you need to refresh yourself from the oppressive heat—sparkling wine is the perfect comp …

sparklingwine

2025/11/12

The Science of Bubbles: Understanding the Mechanism Behind Sparkling Wine’s Appeal

Sparkling wine is an indispensable element of celebrations and gatherings, extending far beyond Christmas and New Year festivities. The sight of bubbles ascending through a flute glass alone can evoke a sense of festivity in the consumer. Sparkling wine i …

viticultur wine

2025/11/26

Wine, Soil, and Terroir | Slate Color and Wine Character

When explaining the distinctive character of wine, the discussion often relates to terroir. Soil is one of the elements that constitute terroir. There are numerous types of soil. Alongside clay and limestone, Schiefer occupies a significant position among …

viticultur wine

2025/12/3

Understanding South African Wine Through Data

Why South African Wines Deliver Exceptional Quality at Accessible Prices South African wines have become indispensable in the global market as leading examples of high-quality yet affordable wines. While Chile once dominated this category, South Africa is …

viticultur

2026/8/21

Biostimulants | A Category That Need Not Explain Why It Works

The word “biostimulant” turns up more and more often on the shelves of agricultural and horticultural suppliers, and not only in viticulture. The descriptions on those shelves tend to run along the lines of invigorating the plant, or activating it. When t …

oenology off-flavor viticultur wine

2025/10/11

Wine Off-Flavor | UTA / ATA

You tasted a white wine at a winery or wine shop and liked it enough to purchase it. However, you felt it was still a little early for drinking, so you decided to let it rest a bit longer in your home cellar. Six months later, at the dinner table. You kne …

column viticultur

2025/7/29

The Environment Surrounding Winemaking | Is There Really Anything That Remains Unchanged?

The tasting method of comparing wines from different harvest years made from the same grape variety harvested from the same vineyard is called “vertical tasting.” This vertical tasting serves two purposes. The first purpose is to compare wines from new an …

viticultur

2025/12/2

Foundations of Grapevine Rootstocks

According to statistics published by the International Organisation of Vine and Wine (OIV), the global vineyard area in 2022—encompassing wine grapes as well as table grapes, raisins, and juice grapes—amounted to approximately 7.3 million hectares.Althoug …

oenology

2025/7/4

The Chemistry of Wine Ageing | Fundamentals of the Maillard Reaction

A chemical reaction known as the Maillard reaction exists. This reaction is also called the amino-carbonyl reaction. The browning of meat when grilled, the appetizing golden color of baked cookies or toast, and the appealing color of fish teriyaki glazed …

oenology

2026/3/19

Are Dessert Wines Never Red?

Preferences in wine vary widely, but few people seem to dislike the profound sweetness that characterises dessert wines. Even setting aside Château d’Yquem, the mere thought of a Riesling Trockenbeerenauslese from an exceptional vintage is enough to bring …

oenology thorough-explanation

2025/7/21

Flor Yeast: The Film-Forming Yeast That Shapes Wine Character Through Biological Aging

Wine aging is a crucial element that deepens the wine’s flavor profile. While wines generally evolve through oxidative aging, an alternative method called “biological aging” is sometimes employed during the winemaking process. Biological aging is a matura …

oenology thorough-explanation vinnatural

2025/12/10

Bio and “Natural”: A Winemaker’s View from the Cellar

Whenever I occasionally post about “natural wine” on X (formerly Twitter), those posts tend to be shared relatively widely for my account size. This simply indicates how many people react to this particular keyword. In recent years, especially in Japan, t …

oenology

2025/7/6

Wine and pH – What Changes in pH Bring to Wine

One of the most critical factors in winemaking is pH. Many people may recall learning about pH in middle school science or high school chemistry classes. However, understanding how pH relates to wine can be challenging. When researching the relationship b …

oenology

2025/8/5

Can Concrete Transform Winemaking?

Attention is returning to wines that are fermented and aged in concrete vessels. Concrete is a building material very familiar to modern people. While concrete is strongly associated with building exteriors and walls, in winemaking it serves as a material …

youtube

2025/7/31

Exploring Wine Diversity

https://www.youtube.com/watch?v=l3zcrR39d8Q In recent years, the concept of “diversity” has become a frequent topic of discussion within the wine industry. However, this diversity does not merely refer to variations within traditional frameworks such as d …

youtube

2025/7/31

The Truth About “Good Vineyards” in Wine

https://www.youtube.com/watch?v=O9hVTlhyZDc Among wine enthusiasts, the belief that “good vineyards” produce quality wines is widely accepted. Wines from vineyards with classifications such as Grand Cru or Premier Cru are often perceived as “distinctly di …

youtube

2025/8/21

The Truth About Natural Wine

https://www.youtube.com/watch?v=Z-SccwUyehI The term “natural wine” remains a perpetual source of heated debate among wine enthusiasts. This phrase has become so ubiquitous that it jumps out at us from Tokyo’s streets in combinations like “natural wine an …

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