6CMJY-50QB stainless steel custom base matcha green stone mill, natural granite stone plate, low-speed cold grinding. Preserve tea aroma, produce ultra-fine matcha powder. Stainless steel frame with casters, suitable for tea shops, labs and small-batch matcha production.
Custom heightened small matcha stone mill DL-6CYMJ-32M, equipped with 30cm natural stone plates. Low-speed low-temperature grinding, produce ultra-fine matcha powder ≤15μm. 50g/h capacity, stainless steel body, ideal for boutique tea shops & small-batch matcha production.
Manual Matcha Stone Mill is a traditional hand-operated grinder made from natural stone, designed for producing fresh and authentic matcha powder. With a slow grinding process and low heat generation, it helps preserve the natural color, aroma, and flavor of tea leaves. Compact and durable, it is ideal for matcha cafes, tea houses, restaurants, cultural experience shops, and small-batch matcha production.
This 5-station horizontal pouch packing machine handles M bags, flat pouches and zipper pouches for 50–500g granular materials like tea. It automatically finishes weighing, filling, vacuuming and sealing with servo control, supporting multiple optional accessories.
The electrostatic cleaner adsorption generated by 4-10 electrostatic rollers extracts impurities in the tea, such as hair, broom bristles, tea fluff ash, thatch, woven bag silk, plastic scraps, iron filings, etc.
DL-6CJDCZ-780-5 electrostatic dust removal cleaner adopts five 780mm rollers. Powered by 1.5kw (380V 50Hz) with dual vibration motors, it delivers cleaning efficiency over 92% and hourly capacity ≥300kg. Optimized electrostatic separation design effectively clears lint, dust and lightweight foreign contaminants in tea. With mature conveyor and sorting bed structure, this machine balances processing yield and purification effect, a cost-effective option for medium-scale tea production lines.
This White Stone Matcha Mill can grind tea leaves into 15μm ultrafine matcha powder.
The DQM-150 features a robust 110L inner and outer 304 stainless steel tank powered by an 11kw pure copper core reduction motor. The machine employs an automated feeding system with a 60L large-capacity hopper, transferring raw materials via a flexible screw conveyor driven by a speed-adjustable motor (0-300r/min).
For tea farmers, the black tea processing sometimes has a bitter and astringent taste, which reduces the quality of black tea and reduces sales. Black tea is fully fermented tea. If some black teas are found to have a bitter taste, then we must first know what substances cause the bitterness of tea.
Astringency: The main component is polyphenols.
Bitterness: The main components are caffeine, anthocyanin and tea saponin.
Based on this, we judged that the bitter taste of black tea is because there are too many polyphenols and caffeine in the tea soup. In fact, the content of polyphenols in black tea is relatively low in the six major tea categories. The main reason is that with the increase of fermentation degree, the content of tea polyphenols will decrease. When black tea is fermented, tea polyphenols are enzymatically oxidized into theaflavins and thearubigins, and the content of tea polyphenols will eventually decrease by more than 90%. Therefore, under normal circumstances, the bitterness of black tea is very low.
I tried to brew it for a while. If the soup is out for more than 30 seconds, it does feel bitter and sour. Obviously, this is one reason, that is, the problem caused by the wrong method of brewing the tea-the water temperature is too high and the brewing time is too long, which will lead to bitterness. degree increase.
Now that we know the origin of the bitterness, is there any other situation? Studies have shown that the production process of black tea and the material of the tea will have an impact.