In addition to Zhejiang Tea Group’s 10,000 high altitude tea farms and 10 tea processing factories, the company also boasts the world’s largest tea extraction facility offering a host of tea extracts and ingredients. With a robust R&D as well as manufacturing capacity, Zhejiang also possesses internal labs to ensure effective quality control measures. This allows for a broad range of extraction capability including:
Firsd Tea’s capability includes the manufacture of liquid tea concentrates. This form of extraction is achieved through brewing dry tea leaves by a solvent and then concentrating the solution into a pure extract. We only use water as solvent in processing to ensure product quality and safety. Liquid tea concentrates retain the flavor, aroma and taste of fresh brewed tea, thus provide portability and convenience for a number of applications spanning RTD beverages, flavoring and various functional products. From high volume to single serve configurations, we have the capability to develop a variety of liquid tea concentrates ranging green, black, oolong, white, pu-erh teas and some varieties of flavored tea.
Instant tea is essentially a powdered form of pure tea extract. Instant tea is also realized through brewing extraction and concentration procedure followed by a drying process. Additional processing methods are applied to ensure solubility in hot and/or cold water. Both spray drying and freeze drying are common processing methods; parameters and techniques will vary based on the desired specifications for solubility, powder density and other product requirements.
Functional food and dietary supplement industries are primarily interested in two categories of compounds extracted from tea: polyphenols and L-theanine. Polyphenols are celebrated as potent antioxidants and are highly marketable. L-theanine is a naturally occurring amino acid in tea that has been documented to both increase focus and impart calm. In order to extract these compounds, a different process is utilized to extricate and standardize the specific ingredients. The application for these extracts include functional foods and beverages, dietary supplements as well as cosmetics.