Nagi

Holds a degree in Viticulture and Enology from Geisenheim University in Germany. Served as Head Winemaker at a German winery. Experienced viticulturist and enologist. Currently working as an independent winemaker and consultant specializing in both viticulture and enology.

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 …

oenology

2025/8/24

Winemaking Techniques Using Frozen Grapes

Freshness is the lifeblood of fruit. This holds true for winemaking as well. Therefore, harvested grapes should be processed into wine as quickly as possible—every minute, every second counts. Many people may hold this image of winemaking. The topic we ex …

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 …

thorough-explanation

2025/8/22

The Power of Yeast | The Relationship Between Wine Aging and Lees

Yeast is indispensable in winemaking. It is only through the presence of yeast that grape juice can transform into wine. While yeast may be considered the protagonist of winemaking, its stage of activity is not limited to the period of alcoholic fermentat …

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 …

qualitycontrol

2025/8/21

Wine Transportation, Storage, and Temperature Management | Understanding the Effects of Heat

During hot summer months, specifying refrigerated delivery for wine shipments has become almost standard practice. For wines delivered to homes, storing them in dedicated wine cellars whenever possible is widely recommended. The reason these temperature-r …

qualitycontrol

2025/8/20

Wine and Cork | The Impact of Cork on Wine Flavor

Cork is the quintessential material for sealing wine bottles. Today, cases of using alternative closures such as screwcaps to seal wine bottles are increasing. Winemakers have come to freely choose from multiple options based on their own philosophy. Agai …

column

2025/8/19

Wine Minerality | Exploring the True Nature of “Taste,” “Aroma,” and “Sensation” in Mineral Character

When drinking wine, there is an expression you will inevitably encounter somewhere along the way: “mineral character” or “minerality.” Even those who haven’t heard these terms yet will almost certainly encounter them in the relatively near future, as they …

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 …

viticultur

2025/8/16

How Long Will Premium Vineyards Remain Premium? | Vineyard Location

On September 12th, the winery where I work harvested grapes for the first time in the 2019 season. While grape growth wasn’t as abnormally accelerated as in 2018, when the harvest came nearly a month earlier than usual, 2019 still marked the beginning of …