The Science Tea & Bitterness: What Tea is Good if I Don’t Like Bitterness?

Bitterness in tea can be either a pleasant structural element or an unpleasant flaw. Most tea drinkers, at some point, have brewed a cup that tasted far more bitter than expected. The good news is that bitterness is usually manageable, and most teas shouldn't be bitter if brewed properly.

By understanding what causes bitterness and how it differs from astringency, you can prevent unwanted harshness and better appreciate bitterness when it is intended.

What Is Bitterness?

Bitterness is one of the five basic tastes: sweet, salty, sour, bitter, and umami. It is detected by taste receptors across the tongue. Humans are naturally sensitive to bitterness, which is why it can feel intense compared to other tastes.

However, bitterness is not inherently negative. Coffee, dark chocolate, and certain wines are valued partly for their controlled bitterness. In tea, a light bitterness can add structure and complexity. Problems arise when bitterness becomes dominant, overwhelming other flavors.

Why Is My Tea Bitter?

Several compounds in tea contribute to bitterness:

• Caffeine
• Catechins (a type of polyphenol, especially abundant in green tea)
• Other polyphenols

Tea plants produce caffeine and other bitter compounds as a natural defence against insects. Younger buds and leaves often contain higher concentrations of caffeine and catechins, making certain teas more prone to bitterness if brewed incorrectly.

Higher water temperatures, longer steeping times, and excessive leaf quantity increase the extraction of these compounds. When extraction is not controlled, bitterness becomes more pronounced.

Bitterness vs. Astringency

Bitterness and astringency are often confused, but they are different sensations.

Bitterness is a taste detected by taste receptors. Astringency, instead, is a tactile sensation. It creates a drying sensation in the mouth, similar to that of unripe fruit or red wine. Astringency occurs when polyphenols bind to proteins in saliva, reducing lubrication.

Astringency is often a desirable characteristic in many orthodox black teas, including Assam and Darjeeling styles, when it is balanced, as it adds structure and clarity. But when excessive, it can feel sharp and drying.

Should Tea Be Bitter?

A well-made cup of tea should not be unpleasantly bitter. Even teas known for strength or structure should maintain balance. 

Slight bitterness can be desirable in certain styles, such as young raw pu erh teas, where the bitter taste often transforms into a returning sweetness. However, this bitterness is generally much milder than that of a +80% dark chocolate.

If your tea tastes harsh or overwhelmingly bitter, it is usually due to one of the following:

• Steeping for too long
• Using water that is too hot
• Using too many tea leaves

Adjusting these variables typically resolves the issue. In the next paragraphs, we'll see which teas are the sweetest and the most forgiving, and which are sweet but need more practice.  

What Tea Is Good If I Don't Like Bitterness?

Luckily, there are plenty of choices for you, as tea is generally sweet, and there are a few types that are inherently bitter. 

1. Natural Sweet Teas

Some teas are naturally sweeter and more forgiving, even if brewed incorrectly.

Generally sweet and smooth:

• White tea
• Lightly oxidised oolong (such as Tie Guan Yin, Ginseng Oolong and Milk Oolong)
• More delicate Chinese black teas like Dian Hong
• Ripe pu erh tea

White, light oolong, and Chinese black teas often display honeyed, floral, or fruity sweetness. They are generally among the most forgiving teas, but excessive heat or steeping time can still make them bitter. Ripe pu erh instead has a pleasant, sweet earthiness and is maybe the most forgiving tea, as it handles high temperatures very well.

Sweet but sensitive to brewing errors:

• Green tea
• Indian and Ceylon black teas
  
• Roasted oolongs

Green tea, in particular, can turn sharply bitter if brewed with water that is too hot. This is one of the main reasons many beginners find it unpleasant. For most green teas, the optimal temperature is between 65–80°C. Definitely avoid using boiling water, which is too harsh for delicate green teas.

The strong black teas from India and Sri Lanka are known for a sharp taste, citrusy, malty, and overall very fresh and bold character. Despite some of them being quite astringent, they aren't supposed to be bitter. If so, they are likely being over-steeped. 

Roasted oolongs can be tricky to steep properly and take some time to master the perfect leaf-to-water ratio. 

2. Lean Toward Bitterness Teas

Some teas naturally have a stronger or more assertive profile and require more careful handling:

• Very young raw pu erh
  
• CTC black tea (commonly used in tea bags)

Some very young raw pu erh can be quite astringent and sometimes bitter in its early years, even if brewed properly. The bitterness is often followed by a sweet aftertaste that balances the overall profile. If you are quite sensitive to it, opt for aged raw pu erh, whose sharp taste should be smoothed out by years of aging. 

Because of its small particle size, CTC black tea extracts very quickly. It's specifically designed to be a strong cup of tea, often served with milk or sugar, and thus can be slightly bitter for those with sensitive or delicate palates. 

Practical Brewing Tips: How To Make Tea Less Bitter

If your tea tastes too bitter, you can fix it by adjusting one factor at a time:

• Lower the water temperature: most ideal for delicate teas that consisting of a lot of young small leaves and buds.
• Shorten the steeping time: especially a good idea for teas that are intended to be steeped at a high temperature such as pu erh tea and oolong tea. For those teas, you'll miss out on the unique aromas when you lower steeping temperature, so controlling the steeping time becomes the most important factor.
• Reduce the leaf quantity: reducing the amount of tea relative to the amount of water you use per steep is another way to reduce bitterness. Additionally, you'll waste less tea, especially if you often happen to discard tea, which still contains several steeps of flavour.

In short, avoid boiling water for delicate teas, but you can use it for pu erh teas. For gongfu tea sessions, shorter infusions help control extraction and maintain balance.

Conclusion

Bitterness in tea is not necessarily a defect. When balanced, it contributes depth and structure. The key is controlled extraction. By understanding the compounds involved and adjusting your brewing method, you can avoid unpleasant bitterness while appreciating the complexity it can offer when properly expressed.