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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thorough-explanation

Myths and Realities of Whole-Cluster Fermentation: How Grape Stems Affect Wine

2025/12/11

In the context of winemaking, you may have encountered terms such as “destemming” and “whole-cluster fermentation.” Both refer to how grape bunches are handled at the point of vatting. A grape cluster consists of many berries attached to a green, stem-lik …

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oenology thorough-explanation vinnatural

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

2025/12/10

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 …

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qualitycontrol

The Relationship Between Fill Level and Wine Quality: What the Headspace Reveals

2025/12/8

In the context of mature wines—those that have spent a decade or several decades in bottle—the fill level is often used as a quality indicator. Some importers and professional merchants routinely assess fill height and decline to ship bottles that fall be …

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qualitycontrol

Wine Flavour and Glycerol

2025/12/5

Wine exhibits remarkable diversity in both flavour and aroma. Even wines produced in the same region during the same vintage never show completely identical sensory profiles. Moreover, when a single producer vinifies grapes from the same vineyard under id …

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viticultur wine

Understanding South African Wine Through Data

2025/12/3

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 …

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viticultur

Foundations of Grapevine Rootstocks

2025/12/2

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 …

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sales-strategy

A New Format for Wine: Bag-in-Box

2025/11/30

Bag-in-Box (BIB) packaging has gained notable traction in recent years, particularly because it suits household consumption and large-volume use. A BIB consists of a flexible pouch containing wine housed within a cardboard outer box. Most packages hold at …

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oenology

Protecting Wine from Oxidation Through Oxidation | Hyperoxidation

2025/11/28

Wine and oxidation are a notoriously incompatible combination. Consider a familiar scenario: you open a bottle of wine that tastes excellent, but you cannot finish it in one sitting. You reseal the bottle and store it in the refrigerator, intending to dri …

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viticultur wine

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

2025/11/26

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 …

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wine

2025/7/29

Wine and Allergies

Did you know that wine may contain surprisingly many potential allergens? Acetaldehyde and biogenic amines, which can potentially cause headaches, may be present in any wine regardless of type or production method. On the other hand, casein and egg whites …

so2 wine

2025/7/29

Is It True That Antioxidants Cause Headaches?

While it seems to be mentioned somewhat less frequently these days, there is a persistent claim that antioxidants contained in wine—specifically additives called sulfites or sulfurous acid—are the cause of headaches that occur when drinking wine. This the …

qualitycontrol wine

2025/6/28

Wine Bottle Storage: Vertical vs. Horizontal Storage – Which is Correct?

When storing wine, there’s probably one question that everyone has wondered about at least once: how should the bottle be positioned? Should wine bottles be stored horizontally, or should they not be stored vertically? A quick search reveals many explanat …

wine

2025/11/5

Is It Really True That Wine Tastes Different from Vineyard to Vineyard?

When discussing the taste of wine, haven’t you often heard the phrase “wine tastes different from vineyard to vineyard”? In fact, this statement merely describes something extremely obvious. What’s more, if you find yourself convinced by this narrative, y …

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 …

sparklingwine thorough-explanation

2025/8/26

Complete Guide | How Sparkling Wine is Made

Sparkling wine, epitomized by Champagne, is an indispensable element at parties and other festive occasions. Have you ever wondered how this effervescent wine containing carbon dioxide gas is actually produced? While explanations of production methods are …

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 …

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

2025/8/14

Understanding Soil in Wine

When introducing wines in Japan, it seems that reference to the type of soil in which the grapes were cultivated is frequently made as one of the elements expressing a wine’s character. While this tendency is not limited to Japan alone, it appears particu …

viticultur

2025/11/2

Frost Protection Methods in Vineyards

Recently, I wrote an article about how earlier budbreak in grapevines increases the risk of frost damage. But do you know what methods exist to protect against this frost damage? Traditional Method: Warming by Open Fires The most traditional countermeasur …

grape-disease viticultur

2025/7/29

Grape Sunburn Phenomenon

Grape berries undergo sunburn phenomena similar to human skin. This phenomenon introduces burnt-like flavors into wine, particularly affecting the quality of white wines where delicate aromas are crucial. Sunburned berries must be sorted and removed durin …

grape-disease viticultur

2025/7/29

Rising Temperatures Cause Widespread Damage: Understanding Grape Sunburn

With the arrival of summer, grapevines in vineyards continue their growth cycle. Currently, vineyard operations are proceeding simultaneously with lateral shoot removal, leaf removal, and shoot tip cutting. During this period, Germany experienced two days …

oenology

2025/8/1

Wine, Acids, and Lactic Acid Bacteria | Understanding MLF

Acids are indispensable elements in wine. However, acids are inappropriate whether they are too abundant or too scarce. The overall balance is extremely important. Wine contains multiple acids, but from a winemaking perspective, tartaric acid and malic ac …

oenology thorough-explanation

2025/7/29

Why Are Red Wines Red?

Why are red wines red? Many people have probably wondered about this question at some point. When researching this question, you can generally find the following information: The cause of red wine’s color is a substance called anthocyanins To extract more …

oenology

2025/11/28

Protecting Wine from Oxidation Through Oxidation | Hyperoxidation

Wine and oxidation are a notoriously incompatible combination. Consider a familiar scenario: you open a bottle of wine that tastes excellent, but you cannot finish it in one sitting. You reseal the bottle and store it in the refrigerator, intending to dri …

oenology thorough-explanation

2025/8/17

Complete Guide: Rosé Wine Production Methods and Their Characteristics

I once encountered an observation that “rosé wines are difficult to imagine even when you know their origin and grape variety.” While this is a fascinating perspective, as someone actually involved in winemaking, I find myself thinking, “Yes, that might i …

oenology

2025/9/3

Alcohol Adjustment in Wine | Considering Water Addition

Global temperatures are rising due to climate change, accelerating the growth of wine grapes accordingly. Warmer winters have caused grape budbreak to occur earlier, and through increasingly hot summers, we can now harvest grapes that are more mature than …

oenology

2025/8/23

Wine and Enzymes: Creating Low-Alcohol Wine with Enzymes

Whether it’s wine or any other alcoholic beverage, drinks with excessively high alcohol content are often difficult to consume. While there are spirits with extremely high alcohol levels in the world, for wine specifically, the upper limit for enjoying wi …

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 …

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 …

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