Blue tea, also known as butterfly pea tea or blue pea tea, is a unique herbal infusion that has gained popularity in recent years. This vibrant beverage is made from the dried petals of the Clitoria ternatea plant, which is native to South and Southeast Asia. Blue tea has been used in traditional Ayurvedic medicine for centuries, and modern research is now uncovering its potential health benefits. In this comprehensive guide, we’ll dive deep into the world of blue tea, exploring its origins, benefits, side effects, and how to make it at home.
Table of Contents
What is Blue Tea?
Blue tea is an herbal infusion made from the dried petals of the Clitoria ternatea plant, also known as the butterfly pea flower. The plant is a climbing vine that produces vibrant blue flowers, which are harvested and dried to make tea. The scientific name for the butterfly pea flower is Clitoria ternatea, and it belongs to the Fabaceae family, which includes legumes and peas.
The butterfly pea flower is native to South and Southeast Asia, where it has been used for centuries in traditional medicine, particularly in Ayurvedic and Chinese medicine. In addition to its medicinal uses, the flower has also been used as a natural food coloring agent due to its vibrant blue hue.
One of the most remarkable features of blue tea is its color-changing properties. The deep blue color of the tea is due to the presence of anthocyanins, which are water-soluble pigments that belong to the flavonoid family. When the pH level of the tea changes, such as when lemon or lime juice is added, the color of the tea changes from blue to purple or even pink.
Chemical Composition and Nutritional Information
Blue tea is rich in various phytochemicals, including:
- Anthocyanins (delphinidin, malvidin, and cyanidin)
- Flavonoids (quercetin, kaempferol, and myricetin)
- Triterpenoids (cycloartane glycosides and taraxerol)
- Steroids (β-sitosterol and stigmasterol)
- Tannins
- Saponins
While the exact nutritional profile of blue tea may vary depending on the source and brewing method, it is generally considered a low-calorie beverage. A typical cup of blue tea (250 ml) contains:
- Calories: 0
- Protein: 0 g
- Fat: 0 g
- Carbohydrates: 0 g
- Fiber: 0 g
- Sugar: 0 g
Health Benefits of Blue Tea
1. Packed with Antioxidants
One of the most significant health benefits of blue tea is its high antioxidant content. The anthocyanins found in butterfly pea flowers, particularly delphinidin, have potent antioxidant and anti-inflammatory properties. These antioxidants help protect cells from damage caused by free radicals and oxidative stress, which are linked to various chronic diseases such as heart disease, cancer, and neurodegenerative disorders.
A study published in the Journal of Applied Pharmaceutical Science found that butterfly pea flower extract exhibited significant antioxidant activity, as measured by its ability to scavenge free radicals and inhibit lipid peroxidation.
2. May Promote Heart Health
Several animal studies have suggested that blue tea may have cardioprotective effects. A study published in the Journal of Ethnopharmacology found that butterfly pea flower extract significantly reduced blood pressure in hypertensive rats. The extract also showed anti-thrombotic effects, preventing the formation of blood clots, which are a major risk factor for heart attacks and strokes.
Another study published in the journal Food & Function investigated the effects of butterfly pea flower extract on cholesterol levels in rats fed a high-fat diet. The study found that the extract significantly reduced total cholesterol, LDL (bad) cholesterol, and triglyceride levels while increasing HDL (good) cholesterol levels.
3. Potential Anti-Diabetic Properties
Blue tea may also have potential anti-diabetic properties. Several in vitro studies have shown that butterfly pea flower extract can inhibit the activity of carbohydrate-digesting enzymes such as α-glucosidase and α-amylase. By slowing down the digestion and absorption of carbohydrates, blue tea may help regulate blood sugar levels and reduce the risk of developing type 2 diabetes.
However, human studies on the anti-diabetic effects of blue tea have yielded mixed results. A small study published in the journal Phytotherapy Research found that consuming butterfly pea flower extract along with a high-carbohydrate meal significantly reduced post-prandial blood glucose levels in healthy volunteers. However, another study published in the Journal of Functional Foods found no significant effects on blood glucose or insulin levels in overweight and obese individuals who consumed butterfly pea flower extract with a high-fat meal.
4. Brain Health Benefits
Blue tea may also have neuroprotective effects, particularly in the context of age-related cognitive decline and neurodegenerative diseases such as Alzheimer’s. Animal studies have shown that butterfly pea flower extract can improve memory and learning in rodents with induced cognitive impairment.
A study published in the journal Neuroscience Letters found that administering butterfly pea flower extract to rats with streptozotocin-induced cognitive impairment significantly improved their performance in the Morris water maze test, a measure of spatial learning and memory. The extract also reduced oxidative stress markers and increased the activity of antioxidant enzymes in the rats’ brains.
5. Stress and Anxiety Relief
The flavonoids present in blue tea, such as quercetin and kaempferol, have been shown to have anxiolytic (anti-anxiety) and stress-reducing effects. A study published in the Journal of Ethnopharmacology found that administering butterfly pea flower extract to mice significantly reduced anxiety-like behavior in the elevated plus maze and open field tests.
Another study published in the journal Phytomedicine investigated the effects of butterfly pea flower extract on stress-induced sleep disturbances in rats. The study found that the extract significantly improved sleep quality and reduced stress-induced changes in sleep architecture.
6. Improves Hair and Skin Health
Blue tea’s antioxidant and anti-inflammatory properties may also benefit hair and skin health. The anthocyanins in butterfly pea flowers have been shown to protect skin cells from oxidative damage caused by UV radiation and environmental pollutants. These compounds may also help reduce the appearance of fine lines, wrinkles, and age spots by promoting collagen synthesis and inhibiting the activity of enzymes that break down collagen and elastin.
In addition, blue tea may have anti-glycation effects, meaning it can prevent the formation of advanced glycation end products (AGEs). AGEs are compounds that form when sugars react with proteins or lipids in the body, leading to skin aging and other health problems.
7. Anti-Microbial and Anti-Cancer Potential
In vitro studies have shown that butterfly pea flower extract has antimicrobial activity against various bacteria, including Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. These findings suggest that blue tea may have potential applications in preventing and treating bacterial infections.
Preliminary evidence also suggests that blue tea may have anti-cancer properties. In vitro studies have shown that butterfly pea flower extract can inhibit the growth and proliferation of various cancer cell lines, including breast, lung, and colon cancer cells. However, more research is needed to confirm these effects in humans and to determine the mechanisms underlying blue tea’s potential anti-cancer activity.
How to Make Blue Tea
Butterfly Pea Flower Tea Recipe
To make a basic cup of blue tea, you will need:
- 1 tsp dried butterfly pea flowers (or 1 tea bag)
- 1 cup (250 ml) hot water
- Honey or sweetener of choice (optional)
- Lemon or lime juice (optional)
Instructions:
- Bring water to a boil in a kettle or pot.
- Place the dried butterfly pea flowers or tea bag in a tea infuser or directly in a cup.
- Pour the hot water over the flowers or tea bag and let steep for 5-7 minutes.
- Remove the tea infuser or strain the tea to remove the flowers.
- Add honey or sweetener to taste, if desired.
- If you want to change the color of the tea, add a squeeze of lemon or lime juice and watch the tea turn from blue to purple or pink.
Iced Blue Tea Recipe
To make a refreshing glass of iced blue tea, follow these steps:
- Brew a strong batch of blue tea using 2 tsp of dried butterfly pea flowers per cup of water.
- Let the tea cool to room temperature.
- Pour the cooled tea over ice in a glass.
- Add honey, lemon juice, or other flavoring agents as desired.
- Garnish with fresh mint leaves or a slice of lemon.
Blue Tea Latte Recipe
For a creamy and indulgent blue tea latte, you will need:
- 1 cup (250 ml) strong brewed blue tea
- 1/2 cup (125 ml) milk of choice (dairy, almond, coconut, etc.)
- 1-2 tsp honey or sweetener of choice
- 1/4 tsp vanilla extract (optional)
Instructions:
- Brew a strong cup of blue tea using the instructions above.
- In a small saucepan, heat the milk over medium heat until steaming.
- Add the honey and vanilla extract (if using) to the milk and whisk until dissolved.
- Pour the hot blue tea into a mug, then add the sweetened milk.
- Use a milk frother or whisk to create foam on top of the latte.
- Dust with a pinch of cinnamon or nutmeg, if desired.
Where to Buy Butterfly Pea Flowers
Dried butterfly pea flowers can be purchased online, in specialty tea shops, and in some Asian supermarkets. When shopping for butterfly pea flowers, look for high-quality, organic flowers that are free from additives and preservatives. Store the dried flowers in an airtight container in a cool, dark place to maintain their freshness and potency.
Potential Side Effects and Interactions
Blue tea is generally considered safe for most people when consumed in moderation. However, there is a lack of research on the long-term safety of consuming butterfly pea flower tea, particularly in pregnant and nursing women.
Some potential side effects of blue tea may include:
- Digestive issues: Consuming large amounts of blue tea may cause digestive discomfort, such as bloating, nausea, or diarrhea, in some individuals.
- Allergic reactions: People with allergies to plants in the legume family (Fabaceae) may be at risk of allergic reactions to butterfly pea flowers.
- Interactions with medications: Blue tea may theoretically interact with certain medications that are metabolized by the liver, such as cytochrome P450 enzymes. If you are taking any medications, consult your healthcare provider before adding blue tea to your diet.
As with any new dietary supplement or herbal tea, it is essential to start with small amounts and observe your body’s reaction. If you experience any adverse effects, discontinue use and consult a healthcare professional.
Blue Tea FAQ
Is blue tea caffeinated?
No, blue tea is naturally caffeine-free, as it is made from the butterfly pea flower rather than the Camellia sinensis plant (which is used to make traditional teas like green, black, and oolong).
Does blue tea have calories and carbs?
Plain blue tea is virtually calorie- and carb-free. However, adding sweeteners, milk, or other ingredients to your tea will increase its calorie and carbohydrate content.
Can I drink blue tea every day?
While blue tea is generally considered safe for daily consumption, it is always best to consume any food or beverage in moderation. If you have any pre-existing health conditions or are taking medications, consult your healthcare provider before making blue tea a regular part of your diet.
What does blue tea taste like?
Blue tea has a mild, slightly earthy, and woody flavor with a subtle sweetness. Some people compare its taste to that of green tea, but without the bitterness. The flavor of blue tea can be enhanced by adding honey, lemon, or other herbs and spices.
Conclusion
Blue tea is a unique and visually stunning herbal infusion that offers a wide range of potential health benefits. From its potent antioxidant content to its potential cardioprotective, anti-diabetic, and neuroprotective effects, blue tea is a versatile and promising addition to a healthy diet and lifestyle.
To reap the benefits of blue tea, try incorporating it into your daily routine by brewing a cup of hot or iced tea, or by experimenting with different recipes like blue tea lattes or smoothies. As with any new dietary supplement or herbal tea, it is essential to consume blue tea in moderation and to consult with a healthcare professional if you have any pre-existing health conditions or concerns.
By embracing the beauty and benefits of blue tea, you can add a pop of color and a boost of nutrition to your day. So go ahead, brew a cup of this enchanting elixir, and discover the magic of blue tea for yourself!
