Once bottled and shipped from wineries, wines are influenced by various environmental factors that alter their taste. We describe these taste changes as aging or deterioration. When we think of wine aging or deterioration, oxidation and heat damage are li …
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 …
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 …
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 …
Are you familiar with the term “petri notes”? This is a specialized term frequently used in wine tasting, particularly when evaluating aged Riesling wines. Experienced tasters can sometimes identify a wine’s grape variety as Riesling the moment they detec …
There is one disease that grape growers particularly fear during rainy years: downy mildew. Whether dealing with wine grapes or any other cultivated plants, the battle against diseases is unavoidable. Vineyards encounter various diseases, but the most pro …
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 …
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 …
Have you ever encountered a red wine that tasted oddly flat yet somehow spicy, with aromas reminiscent of dust, mold, or sulfur compounds? Such wines may have been affected by film-forming yeasts during their aging period. While the term “film-forming yea …
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 …
