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[Chemical Knowledge]：The secret of acidity: the difference between total and free acids

Read： 321 Time：19months ago Source：Transform the World with Simplicity

The acidity of wine is one of the important factors affecting its taste and quality, and total acid and free acid are two important concepts in acidity measurement. So, what is the difference between total acid and free acid? First, let us understand their definition. Total acid

refers to the sum of all acidic components in wine, including free acids and bound acids. The free acid refers to the acidic substances directly dissolved in the wine, which directly affect the taste and flavor of the wine. Therefore, the biggest difference between total acid and free acid is that the total acid also includes the combined acid, while the free acid only includes the acidic components dissolved in the wine. The acidity of the

is usually measured by the pH value. The lower the pH value, the higher the acidic content in the wine. The specific method of measuring total acid and free acid needs to be carried out by the chemical laboratory, using professional equipment and reagents for accurate measurement. By measuring the content of total acid and free acid, winemakers can better control the taste and flavor of wine and produce wine that is more in line with consumer taste.

the difference between total and free acids is essential for wine tasting and drinking. When tasting wine, we can feel the influence of free acid through taste and flavor, which directly affects the performance of wine acidity and fruit taste. The total acid is an important indicator for us to understand the overall acidity of the wine. By knowing the total acid content of the wine, we can expect the taste and oral irritation of the wine.

In addition, the ratio of total acid to free acid is also one of the important factors affecting the quality of wine. Higher total acid content usually leads to a fresher taste and longer-lasting oral irritation, while the proper free acid content makes the wine smoother and more balanced. Therefore, by understanding the difference and content of total acid and free acid, we can better choose and taste wine, and experience the different taste and flavor brought by different acidity.

summary, total acid and free acid are two important concepts in wine acidity, and understanding their differences is essential for identifying and tasting wines. By understanding the content and ratio of total and free acids, we can better choose the wine that suits our taste, and at the same time have a deeper understanding of the quality and taste of the wine. I hope you can feel the different charm of total acid and free acid more deeply when you drink wine.

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