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 …
Why People Buy Natural Wine
I would like to introduce the content of a fascinating article published in the German wine magazine “der deutsche Weinbau.” Image or Sensation? The title of this article is “Image vs. Sensorik.” If we translate this somewhat freely, it becomes “Image or …
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 …
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 …
The Relationship Between Alcohol and Wine’s Taste and Aroma Perception
When tasting wine, which element do you focus on most? Many of you might be conducting tastings that center more on aroma than on flavor. For winemakers, some of you may be paying more attention to the wine’s compositional elements themselves, such as res …
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 …
The Growing World of Grape Varieties | The PIWI Category
Cabernet Blanc, Cabernet Jura, Muscaris, Souvignier Gris. Do these varietal names sound familiar to you? From the sound of “Cabernet~”, “Musca~”, and “Souvi~”, many of you may have guessed that these are wine grape varieties. Indeed, these are all names o …
Is Germany the Northern Limit of Viticulture?
When people begin studying wine, many learners are taught that “wine grape cultivation takes place between 30° and 50° North latitude and 30° and 40° South latitude,” aren’t they? Then, when they move on to the chapter dealing with German wines, they like …
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 …
Comprehensive Guide to Phylloxera
On March 5, 2019, news emerged of fresh phylloxera damage in vineyards in the Yarra Valley, Victoria, Australia. Phylloxera represents one of the most devastating pests in viticulture, capable of causing catastrophic damage to grapevines. In the past, thi …
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 …
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 …
The Winemaking Technique of Carbonic Maceration
Wine terminology related to production processes is often difficult to understand and unfamiliar due to the extensive borrowing from French. However, among such terms, “carbonic maceration” is a name that many people may have heard of at some point. Carbo …
A Comprehensive Guide to Wine Yeast: The Fundamentals
Two essential components are indispensable for winemaking. One is grapes, the raw material. The other is yeast. Yeast is utilized in the production of fermented beverages such as wine, beer, and sake. It is also employed in the fermentation of bread dough …
The Dark Side of Winemaking? Is Chaptalisation Evil? | On Chaptalisation
The addition of brewing alcohol in sake production and sugar supplementation in winemaking—these practices seem to be quite antagonized in many cases. They give the impression of being the dark side of fermented beverages, untouchable territories, so to s …
The Impact of Ascorbic Acid Addition on Wine
In a recently published article titled “Wine Off-Flavors | UTA / ATA,” I discussed how aged nuances detected in what should be young white wine may indicate the presence of UTA, one type of off-flavor. In that article, I introduced the addition of ascorbi …
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 …
Wine and Barrel-Derived Extracts: Phenolic Compounds and Oak-Related Aromas
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 …
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 …
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 …
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 …






























