Sweet potato tea is finished from the giant leaves of sweet potato plants, delicately fermented and oxidized with a technique similar to the tea production process, but much more attention to timing and temperature is necessary. We only harvest the tender leaves or shoots of sweet potato plants and wash them with clean water to remove all the dirt and soil. The leaves are placed in an air-conditioned room for 48 hours in order to make the water in the leaves slowly disappear while keeping them fresh. The leaves ferment along with the oxidation process and then it will release the specific flavor and taste of sweet potato leaf tea. The manufacturer had to roast the sweet potato leaf tea several times just to stop oxidation and reduce the vegetal flavor of sweet potato leaves, making this tea even more time-consuming than other tea production.
The sweet potato leaves are suitable for tea making, the aroma of the tea can be guaranteed, and beneficial effects can be achieved. Moreover, beneficial substances with the effects of oxidizing and reducing blood fat contained in the sweet potato leaves can well remain.
Health benefits of sweet potato leaves:
They said foods like sweet potato leaves are desired for their anti-diabetes properties and for diet therapy. Several studies have already proven that this plant has anti-diabetic compounds that lower blood glucose content. This is advantageous to know considering that the Philippines was reported to be a diabetes hotspot now with 6 million Filipinos having diabetes in the country today.
Helps in Heart Health
Sweet potato leaves have lots of Vitamin K which helps in de-calcifying arteries of hard and harmful plaque deposits, a major cause of heart attacks. Vitamin K in sweet potato leaves also helps reduce inflammation of the cells lining the blood vessels along your veins and arteries. Including sweet potato leaves in your daily diet helps you maintain healthy blood pressure and reduces the risk of having heart attacks.
Anti-mutagenic and Antioxidant
Now, this is the most interesting quality of sweet potato leaves: they have antioxidants and antimutagenic compounds or substances that reduce the rate of mutation of cancer cells. In fact, a study of the effects of 82 kinds of vegetables and plant compounds on the mutation and replication of cancer cells indicated that sweet potato leaves are the ones with the highest cancer checking rate.
The vitamin K component of sweet potato leaves facilitates the blood clotting abilities of our blood. Sweet potato leaves are known to have this particular quality, assisting the body to help recover fast from cuts, bruises, and blood clotting problems.
Enhances Eye Health
Sweet potato leaves are proven to be high in lutein and zeaxanthin (xanthophylls) which are supposed to contribute to the prevention of cataracts and Age-related Macular Degeneration (AMD). Lutein is also an antioxidant which means it prevents oxidative damage to eye lens muscles that contribute to cataracts due to old age.
An extract from the lyophilized sweet potato leaf powder from a variety of sweet potatoes provided antibacterial properties. Moreover, the water extracted from the sweet potato leaves inhibited the further growth of food poisoning bacteria such as the pathogenic E. coli, Staphylococcus aureus, and Bacillus cereus.
Helps in Bone Health
The Vitamin K in sweet potato helps in maintaining the calcium in our bones, thus reducing the risks of developing osteoporosis (bone loss) and lowering the incidence of bone fractures in post-menopausal women.
Because caffeine is not added to the tea, even if a cup of tea is drunk before sleep, sleep is not influenced.
Brewing Guide: Add about 1 to 2 teaspoons (1-2g) of dry sweet potato leaf for each 8oz/250ml cup of water. If brewing in a pot, add an extra teaspoon of tea to the pot. Cover and allow the tea to steep for at least 5 minutes. You can leave the tea leaves in for up to 2 hours, extracting the maximum concentration of beneficial saponins.