email

The Skills Of Puer Tea Fixing Temperature

Home > News > Tea Industry NewsThe Skills Of Puer Tea Fixing Temperature

Hot Products

news

Deli Agricultural Machinery Wows Attendees with New Matcha Stone Mill Innovations at 2026 Xiamen International Tea Packaging Design Exhibition

Deli Agricultural Machinery Wows Attendees with New Matcha Stone Mill Innovations at 2026 Xiamen International Tea Packaging Design Exhibition

2026-04-19 13:24:17

Quanzhou Deli Agricultural Machinery showcases its new matcha stone mill series (Black Gold, Bluestone, and ball mill models) at the 2026 Xiamen Tea Expo, earning high praise from global tea industry professionals.

How to Troubleshoot Uneven Moisture Content During Tea Drying

How to Troubleshoot Uneven Moisture Content During Tea Drying

2026-04-17 08:08:18

Discover technical solutions for uneven moisture in tea drying. Learn how to troubleshoot airflow, calibrate sensors, and optimize batch loads for perfect tea processing.

Mastering Tea Processing: The Essential Guide to Tea Rolling

Mastering Tea Processing: The Essential Guide to Tea Rolling

2026-04-15 16:40:42

Discover the art and science of tea rolling. Learn about different rolling classifications, techniques to improve tea quality and efficiency, and the best tea rolling machines for your production.

Green Tea Withering: Classification, Tips to Boost Quality & Efficiency, Top Machine for Tea Producers

Green Tea Withering: Classification, Tips to Boost Quality & Efficiency, Top Machine for Tea Producers

2026-04-15 15:20:56

A poorly executed withering process can lead to irreversible defects: red stems, uneven flavor, lost aroma, or low production efficiency. In this guide, we break down the classification of green tea withering methods, share actionable tips to boost both quality and efficiency, and recommend a professional, versatile withering machine for modern tea producers.

Contact us

Quanzhou Deli Agroforestrial Machinery Co., Ltd.
If you want know more about our products, please send email to us : info@delijx.com. You also can send message to our WeChat or WhatsApp : 0086-18120033767

The Skills Of Puer Tea Fixing Temperature

2022-06-01 14:16:16

The completion of Pu-erh tea can be summed up in three words: fast, uniform and totally.

"Fast" refers to raising the leaf temperature rapidly (generally within 1 to 2 minutes) to 85°C for about 3 minutes, since 85°C is the critical temperature for enzyme inactivation.

"Uniform" means that the temperature is as uniform as possible, and the fixing is uniform.

"Totally" means to kill the fresh leaves thoroughly.

Regarding the active enzymes in tea, there is such a set of temperatures: when the temperature reaches 35 °C, the catalytic effect of the enzyme will double for every 10 °C increase in temperature; at 52 °C, the activity of polyphenol oxidase is the highest; at 85 °C, Enzyme inactivation.

Therefore, the best way to tea fixation is to raise the temperature quickly, so that the leaf temperature reaches 85 °C, and the tea fixing is completed in a short time, the active enzymes are killed as soon as possible, and the aging potential of Pu'er tea is preserved as much as possible.

So what happens when the temperature is too high and too low?

If the temperature is too high, it will cause a lot of cracking of glycosides, which will also reduce the aging potential; if the temperature is too low, not only will the low-boiling grassy flavor not volatilize, but also lead to the occurrence of pre-fermentation, thereby destroying the aging potential of Pu-erh tea.

Therefore, when we fixing the fresh leaves of Pu-erh tea, it is best to accurately control and record the leaf temperature. The quality of the Pu-erh tea produced in this way is more guaranteed, especially in the later ageing process, the impact will be greater and greater.