10 Major Side Effects of Over Boiling Milk Tea

Milk tea, a beloved drink enjoyed globally, blends the energizing aspects of tea with the smooth creaminess of milk. Whether it's the fragrant, spicy Indian chai or the soothing British tea with milk, this beverage has become a daily ritual for many.

However, the frequent practice of over-boiling milk tea to boost its flavor or strength brings up significant health concerns. Over-boiling can change the chemical composition of the drink, potentially leading to various health issues.

This post examines the potential side effects of over-boiling milk tea, offering valuable information for enthusiasts who want to enjoy their favorite beverage without compromising their health.

# Formation of Harmful Compounds

A major risk of over-boiling milk tea is the creation of harmful compounds. The Maillard reaction, which occurs when amino acids and sugars in milk are exposed to prolonged high heat, can lead to the formation of advanced glycation end-products (AGEs). These compounds are associated with increased oxidative stress and inflammation, potentially contributing to chronic conditions such as diabetes, cardiovascular diseases, and some cancers.

# Protein Denaturation

Milk contains proteins such as casein and whey that can denature when exposed to high temperatures for too long. Denatured proteins may become harder to digest, leading to potential digestive discomfort. Those with sensitive digestive systems might experience bloating, gas, or stomach cramps after consuming over-boiled milk tea.

# Increased Tannin Extraction

Tea leaves contain tannins, which give tea its astringent taste. Over-boiling can release excessive tannins, making the tea bitter and overly astringent. High tannin levels can also hinder the absorption of essential minerals like iron, which could lead to deficiencies over time.

# Enhanced Caffeine Release

Extended boiling can increase the amount of caffeine released from tea leaves. While moderate caffeine intake can be beneficial, excessive amounts may lead to side effects such as increased heart rate, anxiety, insomnia, and digestive issues. Those sensitive to caffeine might find over-boiled milk tea particularly troubling.

# Altered Taste and Texture

Over-boiling milk tea can change its taste and texture, making it thick and potentially scorched or burnt. This altered flavor may lead to the addition of more sugar or flavorings to mask the bitterness, which can increase calorie intake and contribute to weight gain.

# Digestive Issues

Over-boiled milk tea can be tougher on the digestive system. Denatured proteins and increased tannin content may irritate the stomach lining, leading to issues like acid reflux, indigestion, and gastritis. Those with existing digestive conditions might be more susceptible to these effects.

# Increased Sugar Dependency

If milk tea becomes bitter from over-boiling, individuals may add more sugar to improve its taste. This increase in sugar consumption can lead to health problems such as weight gain, a higher risk of type 2 diabetes, and dental issues like cavities and gum disease.

# Potential Allergen Activation

Milk proteins can be allergens for some people. Over-boiling may alter these proteins, potentially making them more likely to cause allergic reactions. Symptoms can range from mild, like hives and digestive discomfort, to severe, such as anaphylaxis, which requires immediate medical attention.

# Oxidative Stress

The excessive heat from over-boiling can break down beneficial compounds in tea, such as antioxidants. Antioxidants, like catechins in green tea, help neutralize free radicals, reduce oxidative stress, and prevent cellular damage. Reduced antioxidant levels in over-boiled milk tea may diminish its protective effects against oxidative stress-related diseases.