How to preserve Keemun black tea
As one of China's top ten famous teas, Keemun black tea is world-famous for its unique "Qimen fragrance" and mellow taste. Correct storage methods can not only extend the shelf life of tea, but also maintain its original flavor and quality. This article will introduce in detail the preservation techniques of Keemun black tea, and attach relevant data for reference.
1. Key factors for preserving Keemun black tea
The preservation of Keemun black tea is mainly affected by the following factors: humidity, temperature, light, oxygen and odor. The following is the specific data:
| Influencing factors | ideal conditions | adverse effects |
|---|---|---|
| Humidity | ≤60% | Tea leaves become damp and moldy |
| temperature | 0-5℃ (refrigerated) or below 25℃ (normal temperature) | High temperature accelerates oxidation and flavor loss |
| light | Store away from light | Light causes chlorophyll to decompose and darken the color |
| oxygen | Keep sealed | Oxidation reaction causes tea to deteriorate |
| Odor | Stay away from sources of odor | Tea leaves absorb odors and affect the taste |
2. How to preserve Keemun black tea
1.Normal temperature storage method: Suitable for short-term (3-6 months) storage. Put the tea into an aluminum foil bag or tin can, seal it and store it in a cool, dry place.
2.Refrigerated storage method: Suitable for long-term (more than 1 year) storage. Divide the tea leaves into small portions, package them in food-grade sealed bags and place them in the refrigerator (0-5°C). Please note that after taking it out, let it stand to room temperature before opening to avoid condensation.
3.Vacuum preservation method: Using a vacuum machine to evacuate the air inside the package can significantly extend the shelf life. Suitable for high-end Keemun black tea.
4.quicklime preservation method: Traditional method. Place the tea leaves and quicklime (ratio 5:1) in a sealed container. The lime needs to be replaced regularly.
3. Storage suggestions for different packaging forms
| Packaging type | shelf life | Things to note |
|---|---|---|
| Bulk | 3-6 months | Need to be packed and sealed as soon as possible |
| Bagged (non-vacuum) | 6-12 months | After opening, transfer to sealed container |
| vacuum packaging | 18-24 months | The shelf life is shortened to 1 month after opening |
| canned | 12-18 months | Make sure the tank is well sealed |
4. Common storage misunderstandings
1.Misunderstanding 1: It can be stored for a long time in the refrigerator- The seal must be ensured, otherwise refrigerator odor and moisture will still affect the tea leaves.
2.Myth 2: Transparent glass jars are beautiful and practical- Glass jars cannot protect from light, which will accelerate the deterioration of tea quality.
3.Myth 3: Tea becomes more fragrant with age- Keemun black tea is a fully fermented tea. The best drinking period is within 1-2 years. The flavor will gradually fade after being stored for a long time.
4.Misunderstanding 4: Storing a large amount of tea together- It is recommended to store in small portions to reduce oxidation caused by frequent opening and closing.
5. Judgment Criteria for Quality Changes
| changing characteristics | Possible reasons | Is it drinkable? |
|---|---|---|
| Fragrance fades | Stored for too long or poorly sealed | Drinkable, but flavor reduced |
| Stale smell appears | Moisture or oxidation | It’s drinkable for light drinks, but not recommended for heavy drinks. |
| Tea leaves become soft | damp | Need to be dried before drinking |
| Mildew appears | Severely damp | Not drinkable |
6. Preservation suggestions from professional tea drinkers
1. When purchasing new tea, it is recommended to "awaken the tea" first: after opening, place it in a clean container to ventilate for 1-2 days to dissipate the stuffy smell during transportation.
2. Tea leaves of different years and batches should be stored separately to avoid odor transfer.
3. Establish a "first in, first out" usage principle to ensure that tea leaves are drunk in their best condition.
4. Regularly check the status of tea inventory. It is recommended to check once a quarter.
5. Precious old tea can be stored in professional tea warehouses and controlled in a constant temperature and humidity environment.
Through the above scientific and reasonable preservation methods, your Keemun black tea can maintain its unique aroma and mellow taste of "like flowers, honey and fruits" to the greatest extent, so that every cup of tea can be in its most perfect state.
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