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Tea Pet — Why Does a Tea Pet Change Color?

Tea News · May 07, 2025

Tea Pet — Why Does a Tea Pet Change Color?-1
       Tea pet: why does it change color? Let's find out why tea pets change color.

With the improving living standards, while enjoying the comfort that tea brings, tea pets have become the new star in the world of tea. However, many tea enthusiasts share a common question: why do tea pets change color? This has become a curious question for tea lovers when they first start to appreciate tea. Below, we will unravel the mystery behind why tea pets change color.

A Tea pet is a pet nourished by tea, mostly made from purple clay or molded mud into Ceramic handicrafts. When Drinking Tea, you can use tea to dip and smear the tea pet or pour leftover tea over it. Over time, the tea pet will become warm and pleasing to the touch, with an aroma of tea permeating around it.

Tea Pet — Why Does a Tea Pet Change Color?-2

So, why does a tea pet change color? According to studies, the primary reason for the change in color is the further oxidation of tea polyphenols, causing the color to deepen. For example, a clear green cup of tea will lose its original green color and turn more yellow if left at a high temperature for too long. This is due to the formation of yellow, red, or brownish oxidation products of tea polyphenols, mainly theaflavins, thearubigins, and theabrownins. This is the key factor in why tea pets change color. These products are non-toxic and do not pose any harm to the human body.

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Another reason why tea pets change color is due to the presence of many tea polyphenols and Vitamin C in the tea leaves, which act as natural inhibitors of nitrosamines. Therefore, drinking tea can also eliminate the hazards brought about by other foods containing nitrosamines. The rich tea polyphenols in tea help by clearing oxygen free radicals and inhibiting lipid peroxidation, particularly showing significant effects in inhibiting other carcinogens. Vitamin C and vitamin E in tea water also have auxiliary anti-cancer effects.

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The tea pet changing color demonstrated in today's images is because there is a thermochromic material coated on the surface of the tea pet. Whenever hot water is poured over it, the color changes immediately. This is the fastest and most noticeable type of interesting color-changing tea pet.
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