How is Instant Black Tea Powder Extracted?

The production of instant black tea powder involves a complex but carefully controlled process designed to preserve the unique flavors and aromas of black tea while making it convenient for consumers to enjoy a cup of tea at home or on the go.

The Extraction and Drying Process

One of the most common techniques used to extract instant black tea powder is spray drying. The journey begins with freshly picked tea leaves that are meticulously processed through several stages including withering, rolling, and fermentation. Withering helps in reducing the moisture content, while rolling lends a characteristic flavor and aroma to the tea. Following these steps, the tea undergoes a fermentation process, which is an essential stage that distinguishes black tea from other varieties. This process causes a partial breakdown of the tea leaves, releasing compounds that contribute to the rich flavor and color of the tea.

Spray Drying: The Final Step

After fermentation, the tea is steeped to extract a concentrated liquid. This liquid is then further processed through evaporation to increase its concentration. Once concentrated, the liquid is sprayed into a drying chamber where it is exposed to a stream of hot air. As the liquid droplets pass through the hot air, the moisture evaporates rapidly, resulting in a fine powder. This powder, a dehydrated extract of the tea, can be stored, packaged, and sold as instant black tea powder.

The Preparation of Powdered Black Tea Drinks

For those seeking a more concentrated and flavorful instant black tea powder, the preparation process involves a series of extractions and drying steps. One method starts with a primary extraction of the tea leaves using hot water, typically between 60°C and 130°C. After extracting the initial concentration, the tea leaves are separated from the extract, and the extract is concentrated to achieve a solids content of between 5% and 12%. To prevent re-dissolution, the concentrated extract is cooled, which forms an insoluble tea cream.

This cream is then separated from the concentrated extract, after which it is mixed with spent tea leaves or green tea leaves. Another extraction is then performed using water at a temperature greater than 70°C, which results in a second extract. This second extract is then separated from the spent leaves, mixed with the first extract, and concentrated to the desired solids content. Finally, the mixture is dried, resulting in the powdered drink mix.

Convenience and Flavor

Instant black tea powder and its powdered drink mix forms a convenient solution for tea lovers who wish to enjoy a cup of tea without the bother of steeping and plucking tea leaves. The powder can be easily mixed with water to prepare a cup of tea, offering both convenience and the unique flavors and aromas of black tea.

Conclusion

The extraction process of instant black tea powder is a delicate balance of traditional and modern techniques. From the initial processing of the tea leaves to the final spray drying, every step contributes to preserving the quality and flavor of the tea. Understanding the process can help consumers appreciate the craftsmanship behind their choice of instant tea.

Keywords: instant black tea powder, spray drying, extraction process