About the Rou Gui Oolong tea:

Rougui tea is a Wuyi Oolong tea. 
The name literally means "cassia". The tea can be difficult to prepare, 
but its distinctive sweet aroma can be brought out up to 7 steepings. It
 was first developed during the Qing Dynasty. Curly leaves resembling 
iron shards. The leaves are hand-rolled into the traditional twisted Yan
 Cha form and pan-fired at their aromatic peak to arrest oxidation. 
Afterwards they are charcoal-fired in small batches to produce the deep 
green color and rich flavor that have made this tea one of China's most 
famous tea. The aroma of the dry leaf is deliciously sweet while the 
dark amber infusion is soft, smooth and malt.

This tea may be 
traditionally processed producing a dark dry leaf and a rich smell or 
processed according to new consumer standards, giving it a leaf of mixed
 color and a more fruity aroma.

Brief Health Info:

1、Improvement
 on immunity: The tea can improve the CONA to stimulate spleen 
lymphocyte proliferation response, increasing the body's resistance.
2、Anti-aging:
 The tea contains tea polyphenols. It can improve the vitality of the 
whole blood (GSH-PX). It is of benefit in clearing the free radicals and
 reducing body damage, thereby delay the aging of human body.
3、Effect
 on weight and beauty: The tea can reduce the blood lipid, cholesterol 
and tri-glyceride content. It is also helpful to promote the activity of
 the pancreatic lipase and inhibit the increase of neutral fat.
4、Dental
 health care: The fluoride content in tea is 27.3-146.6 PPM. The 
appropriate fluoride can prevent tooth decay and enhance their tenacity.

Usage:

Place
 one teaspoon per cup into an infuser, filter or teapot. Switch the 
kettle off, before it boils, when you hear the water rumbling. Add the 
hot, but not boiling, water and infuse for 3 minutes. Serve immediately 
or remove leaves to prevent spoiling.

Storage:

It is best 
not to use glass jars, porcelain pots, boxes or medical bottles to 
preserve Rou Gui tea, as these these containers have some shortcomings: 
fragile, allowing light to affect the tea, and not moisture-proof. It is
 recommended to use dry jar or refrigerator to protect the tea.