Pea flower tea, often known as butterfly pea flower tea, is an herbal infusion derived from the vibrant blue petals of the Clitoria ternatea plant. Native to Southeast Asia, this climbing vine has been traditionally used for centuries. The striking deep blue color that the flowers impart when steeped is its most celebrated characteristic, distinguishing it from other herbal beverages.
Key Health Benefits
The advantages of consuming this tea are primarily attributed to its high concentration of antioxidants, particularly anthocyanins. The specific anthocyanins found in the butterfly pea flower are known as ternatins, which are responsible for the flower’s vivid blue hue. These compounds work to neutralize unstable molecules known as free radicals, thereby helping to mitigate oxidative stress throughout the body.
The tea has been traditionally associated with supporting cognitive function. Studies indicate that extracts from the flower may influence levels of acetylcholine in the brain, a neurotransmitter that plays a role in memory and learning. By potentially modulating these levels, the tea is traditionally used for memory enhancement and may help support overall brain health.
The antioxidant properties also extend to promoting the health and appearance of skin and hair. The compounds in the tea are thought to help support the skin’s natural structure by reducing the effects of oxidative damage linked to aging. Furthermore, the bioflavonoids in the flowers may help increase blood flow to the scalp, which is an action that can support hair follicle nourishment and potentially encourage hair growth.
The ternatins and other flavonoids present in the tea also contribute to its anti-inflammatory properties. Reducing chronic, low-grade inflammation is a mechanism that supports overall systemic wellness. This general reduction in oxidative stress across the body contributes to the tea’s traditional use as a general health tonic.
The Unique Color Changing Property
The tea’s most mesmerizing trait is its ability to change color in response to modifications in acidity. This visual transformation results from the high concentration of ternatin anthocyanins. When the tea is first brewed, its natural pH is generally neutral to slightly alkaline, resulting in a vivid, deep indigo or sapphire blue liquid.
The ternatin molecules are highly sensitive to the concentration of hydrogen ions, which is measured by the pH scale. When an acidic ingredient is introduced, such as a squeeze of lemon or lime juice, the pH level of the beverage drops significantly. This change in acidity causes the chemical structure of the ternatins to rearrange, which in turn alters the way they absorb and reflect light.
As the liquid becomes more acidic, the blue color shifts rapidly through the spectrum, first turning into a rich violet or purple. If a stronger acid is added, the color can progress all the way to a magenta or pink hue. This natural chemical reaction makes the tea a popular ingredient for visually stunning cocktails, mocktails, and culinary applications.
Brewing and Consumption Methods
Brewing the infusion is a simple process. Generally, dried butterfly pea flowers should be steeped in hot water, ideally around 195°F (90°C). Using about one teaspoon (2-3 grams) of dried flowers per cup of water is a common ratio for preparation.
The ideal steep time ranges from three to five minutes; a longer steep will yield a deeper color but may also impart a slightly more earthy taste. The resulting blue infusion can be enjoyed immediately as a hot, mild, and earthy beverage. It is also frequently chilled and served over ice, sometimes mixed with sweeteners or other herbal components like lemongrass.
Beyond traditional tea, the vibrant extract is used as a natural, edible blue dye for foods like rice and pastries. Its dramatic color-changing ability makes it especially popular for layering in beverages, where the acid can be added tableside for a visual effect. The versatility of the extract allows it to be incorporated into syrups, cocktails, and lemonades.
Safety Considerations
Butterfly pea flower tea is widely regarded as safe for consumption and has been used traditionally for many years without significant reported adverse effects. It is a naturally caffeine-free herbal infusion, making it suitable for enjoyment at any time of day. However, as with any herbal product, moderation is advised.
There is a current lack of extensive, long-term human clinical trials. Individuals who are pregnant or nursing should exercise caution and consult with a healthcare provider before incorporating the tea into their regular routine. People with existing medical conditions or those taking prescription medications should also seek professional medical advice before making any significant changes to their herbal supplement intake.