7 Common Tea Myths You Probably Believe and Why They're Wrong

Tea has been one of the world’s most beloved beverages for centuries. It is enjoyed for its comforting warmth, refreshing flavors, and cultural significance. Whether it’s a calming cup of green tea or a bold Assam brew, tea uniquely brings people together.  

Millions of cups are consumed daily, with black, green, white, oolong, and pu-erh teas considered the true varieties made from the Camellia sinensis plant. 

Beyond its taste, tea has long been linked with several health benefits, from improved digestion to antioxidant support. However, its popularity has also led to many myths and misconceptions about its effects and proper consumption. Some myths have been passed down through generations, while others stem from marketing claims or oversimplified health advice. 

It’s time to set the record straight. In this article, we’ll explore the most common myths surrounding tea and uncover the facts so you can fully appreciate this ancient, healthful beverage. 

7 Surprising Myths About Tea 

Let's bust some myths and try to grasp the genuine nature and ingredients of the most popular beverage. 

Myth 1: All Teas Contain the Same Amount of Caffeine

This is perhaps one of the most widespread misunderstandings about tea. Many people assume that all teas, excluding herbal infusions, contain a uniform level of caffeine. 

Fact: 

The caffeine content in tea varies considerably due to several factors: 

Here's a general comparison of caffeine content per 8-ounce cup (these are approximate values and can vary significantly): 

This table illustrates the significant variation in caffeine content across different tea types. Therefore, choosing white or green tea or herbal infusions can be a good strategy if you're sensitive to caffeine. 

Myth 2: Herbal Teas Are True Teas 

The common term "herbal tea" can lead to confusion about the botanical origins of these beverages. 

Fact: 

"Herbal teas" are technically not teas at all. The term "tea" should strictly refer to beverages obtained from the leaves of the Camellia sinensis plant. These are the "true" teas: black, green, white, oolong, and pu-erh. 

Herbal teas, called tisanes or herbal infusions, infuse herbs, spices, flowers, fruits, or other plant materials in hot water. Because they do not have Camellia sinensis leaves, they are naturally caffeine-free (unless blended with true tea). 

Examples of popular tisanes include: 

Understanding this distinction is important, especially for those who are sensitive to caffeine or who are looking for specific health benefits associated with true teas or herbal infusions. 

Myth 3: Adding Milk to Tea Reduces Its Health Benefits

Many tea drinkers believe that adding milk, particularly to black tea, diminishes the health benefits of the beverage, specifically its antioxidant capacity. 

Fact: 

This myth stems from early studies suggesting that milk proteins, particularly casein, could bind to tea's antioxidants, such as theaflavins and thearubigins (found in black tea), and catechins (found in green tea), thereby reducing their bioavailability (the extent to which the body can absorb and utilize them). 

However, more recent and comprehensive research paints a different picture. At the same time, some studies have shown a slight reduction in the absorption of certain antioxidants when milk is added. 

The overall reduction is generally considered minimal and not significant enough to negate the health benefits of tea. 

Here's a more detailed breakdown: 

To sum up, while adding milk to tea may have a minor impact on the absorption of some antioxidants, it does not eliminate the health benefits of tea.  

Enjoying your tea with milk is a matter of personal preference and is unlikely to significantly diminish its health-promoting properties. 

Myth 4: Green Tea Is Always Healthier Than Black Tea

Green tea has received considerable attention for its potential health benefits, often leading to the misconception that it's inherently healthier than black tea. 

Fact: 

Both green and black teas offer distinct health perks due to their unique compositions of antioxidants and other beneficial compounds. While they share the exact origin (the Camellia sinensis plant), their processing methods result in different chemical profiles. 

Here's a comparison of their key components and associated benefits: 

High in Catechins: Particularly epigallocatechin gallate (EGCG), a powerful antioxidant. 

Potential Benefits: Linked to improved heart health (lowering cholesterol and blood pressure), enhanced brain function, potential cancer prevention, and weight management. 

Contains Theaflavins and Thearubigins: These compounds are formed during oxidation and are also potent antioxidants. 

Potential Benefits: Linked to improved heart health (blood vessel function), better blood sugar control, and positive effects on gut health. 

It's crucial to understand that both types of tea offer significant health advantages. Choosing between them depends on your preferences, desired flavor profile, and specific health goals. One is not inherently "healthier" than the other; they offer different benefits. 

Myth 5: Drinking Tea Leads to Dehydration

Because tea contains caffeine, a known diuretic, many believe that drinking tea contributes to dehydration. 

Fact: 

While caffeine does have a mild diuretic effect, meaning it can increase urine production, the amount of fluid consumed in a typical cup of tea far outweighs the diuretic effect of the caffeine it contains. 

Here's why this myth is incorrect: 

Therefore, you don't need to worry about dehydrating yourself if you consume extremely large quantities of tea (far beyond typical consumption). Tea can be a valuable part of a hydrating lifestyle. 

Myth 6: You Should Always Use Boiling Water to Brew Tea

Many people assume boiling water is the ideal temperature for brewing all types of tea. 

Fact: 

While boiling water (212°F or 100°C) is suitable for some teas, particularly black tea, it can damage more delicate teas like green and white tea. Boiling water can scorch the leaves, creating a bitter, astringent, and unpleasant taste. 

Here's a breakdown of ideal water temperatures for different tea types: 

The best way to ensure optimal brewing is to use a thermometer to check the water temperature. If you don't have a thermometer, let the boiling water sit for a minute or two before pouring it over the more delicate teas. 

Myth 7: Tea Never Expires 

Some people believe dry tea leaves can be stored indefinitely without losing quality. 

Fact: 

While dry tea leaves won't necessarily "spoil" like fresh food, they lose their flavor, aroma, and beneficial compounds over time. Exposure to air, light, moisture, and strong odors can accelerate this process. 

Here's what you need to know about tea's shelf life: 

While drinking stale tea won't typically make you sick, it won't provide the same enjoyable experience as fresh tea. Therefore, consuming tea within a reasonable timeframe is best to store it ideally to maintain its quality. 

The Final Note 

Our goal is to dispel seven widespread tea myths so that you can make better decisions about how much tea you drink.  

Whether you're a seasoned tea enthusiast or just beginning your tea journey, understanding the facts behind these misconceptions will enhance your appreciation for this versatile and beloved beverage.  

Now, you can confidently brew and enjoy your favorite cup of tea, knowing you're making informed decisions about its preparation and benefits.  

Thus, turn on the kettle, select your blend, and enjoy tea's real taste and health advantages.