Science behind color changing effect of Butterfly blue flower tea

Butterfly blue tea, also known as butterfly pea flower tea, has been gaining popularity in recent years due to its natural color-changing effect. When the tea is brewed, it starts off as a deep blue hue but can change to a pink or purple color when citrus or other acidic ingredients are added. In this blog, we'll explore the science behind this natural color-changing effect.

Butterfly blue tea is made from the dried flowers of the butterfly pea plant, scientifically known as Clitoria ternatea. The plant is native to Southeast Asia, where it has been used for centuries in traditional medicine and cooking. The flowers are rich in anthocyanins, which are water-soluble pigments that are responsible for the blue color of the tea.

Acidic Reaction

When an acidic ingredient, such as lemon juice, is added to butterfly blue tea, it changes the pH level of the tea. This change in pH level causes the anthocyanins in the tea to shift their molecular structure, resulting in a change in color. The blue pigments become more acidic, which causes them to turn into a reddish-purple hue. This reaction is similar to what happens when red cabbage is boiled and turns from blue to purple when an acidic substance is added.

Temperature and Light

The color-changing effect of butterfly blue tea can also be affected by temperature and light. When the tea is heated, the anthocyanins can become denatured, which can cause the blue color to fade. Similarly, exposure to light can cause the pigments to break down, which can also affect the color of the tea.

Health Benefits

In addition to its unique color-changing effect, butterfly blue tea has several health benefits. The tea is rich in antioxidants, which can help protect the body against free radicals and oxidative stress. It is also believed to have anti-inflammatory and anti-anxiety properties, making it a popular choice for those looking to improve their overall health and wellbeing.

Conclusion

Butterfly blue tea is a unique and fascinating beverage that has gained popularity due to its natural color-changing effect. The tea is made from the dried flowers of the butterfly pea plant, which contains anthocyanins that are responsible for the blue color of the tea. When an acidic ingredient is added to the tea, the pH level changes, causing the blue pigments to shift and resulting in a change in color. The science behind this natural color-changing effect is both interesting and complex, and it is just one of the many reasons why butterfly blue tea is such a fascinating and popular beverage.