White Tea vs Green Tea: Processing, Caffeine, Weight Loss, Price
Green tea is well-known for its numerous health benefits, including weight loss. However, in the recent years, white tea is gaining popularity. So what is really the difference between white and green tea? In this article, we compare both types and discuss their differences in processing, caffeine content, health benefits, price and more.
White Tea versus Green Tea Processing
The understanding of processing is very important when it comes to comparing tea types. This aspect greatly influences the resulting caffeine content as well as the health benefits.
You should first know that all teas are processed from different cultivars of the Camellia sinenses tea plant. So the classification of tea has in fact nothing to do with the raw material used. What makes the difference is the processing method that is applied.
Unlike black tea, both white and green tea are lightly processed tea. The main difference is that green teas are dried in the shadow and then either pan-fried or steamed.
However, white tea is first withered under direct sun light and followed by further indoor withering. The result such minimal processing is that the tea keeps it whitish color, especially when the tea consists of buds (as you can see in the picture above). The white color is the results of downy hairs on the surface of the buds. In contrast, you won't see this on green teas due to pan frying.
Many believe that white tea processing is very easy because it only involves withering, but it isn't. First of all tea leaves have to be spread evenly on bamboo sheets for drying in the sun right after picking. This has to be done as soon as possible after picking, to make sure they don't turn brown. Indoor withering is even more difficult, as one needs to control humidity, room temperature, and monitor the fermentation of the leaves carefully to determine the right duration.
- Some people say the main difference between these two types of tea is that the white tea leaves are harvested at a younger age. This is a pure myth. Both types of tea can consist of young or old leaves and they're graded based on this.
- Very often you hear that white tea is not fermented/oxidised at all. That's simply not true. Think about it, leaves start to oxidise the moment they're plucked. It's just that the processing for white tea is more gentle compared to the pan-frying (or steaming) of green teas.
White Tea Versus Green Tea Regions
Tea processing isn't something you learn over night. In China, production skills are passed on generation after generation. That's why white and green teas are produced in different specialized regions. Green tea regions include the West Lake region south of Hangzhou and the Yellow Mountain (also known as Huangshan).
On the other hand, China's Fujian province is very skilled in processing white tea. Great white tea comes from villages such as Fuding and Zhenghe. Famous white teas from these regions include the silver needle and bai mu dan.
White Tea Versus Green Tea Price
Both white and green tea prices can range from very cheap to very expensive. There's simply no way to give it a standard price tag. Tea prices can fluctuate every year and depend mainly on the success of a harvest. If climate conditions are ideal, this can result in more supply to cover the consumer demand. In such cases, the prices in that year will be lower. However, tea from original regions are often times more expensive, than villages with less history.
Caffeine Content of White and Green Tea
It's generally believed that white tea contains less caffeine than green tea. While this generally might be true, it only explain a small part of the story.
For caffeine content, one also need to look at other factors. For instance, teas with more young bud content contain often more caffeine. Steeping temperature and steeping time also matter. The longer you steep and the higher the temperature you apply, the more caffeine you're going to extract.
Generallizing caffeine levels based on tea types is a bad idea. According to a study published in Journal of Food Science (2005) caffeine content can vary widely among individual teas. The researchers tested 77 teas and found very broad ranges of caffeine levels. What was remarkable that a white tea in the study in fact had the highest level! So it's completely wrong to drink white tea based on the believe that it contains less caffeine than other types
Another study in 2008 (Journal of Analytical Toxicology) also studied multiple teas and found that the caffeine levels range from 14-61 mg per 6-8 oz serving. The scientists found no observable difference of caffeine content among tea types.
Read more about caffeine in our tea caffeine guide.
White versus Green Tea Side Effects
Both white and green tea contain caffeine and therefore it should be avoided by those who're sensitive to it. To avoid the side effects, it's recommended to drink tea in the morning and afternoon and avoid it during the evening. Instead, in the evening you could go for caffeine free herbal or flower teas.
Besides side effects related to caffeine, both white and green tea are fairly 'raw' teas due to their mild processing. Because of this it can sometimes upset the stomach. It's the best to completely avoid tea on an empty stomach. Ideally, drink tea 30 minutes after eating a meal to avoid such side effects. If your stomach still doesn't feel well, then we recommend to switch to more oxidised teas such as oolong, black or ripe pu erh tea.
Also read our guide about when to drink tea.
White and Green Tea EGCG
EGCG is the most abundant catechin in tea and is a potent antioxidant that has therapeutic applications in the treatment of many disorders (e.g. cancer). EGCG is found in green tea and that is why it has numerous benefits including promoting properties including boosting cardiovascular health, helping to lower cholesterol, reducing the risk of cancer and enhancing weight loss.
So what about white tea? Some people believe that white tea contains more EGCG as it's less intensively processed as green or black tea. However, a 2010 study in the Journal of Food Science shows that it's hard to generalise catechin content by tea type. The researchers found that total catechin content for different white teas in dry form can range from 14.40 to 369.60 mg/g compared to 21.38 to 228.20 mg/g for dry green tea. These numbers suggest that there's a great variety in catechin levels within each tea type.
The authors of the research paper conclude that processing, cultivation and the source itself may influence tea catechin content more than whether it's a white or green tea.
Because tea types aren't relevant for EGCG catechin levels, we suggest to focus on sourcing high quality tea. Teas with more full leaves and buds generally contain more catechin. In addition, freshness is a very important factor. Often times, tea bags contains 'tea dust' that are shipped in large containers. Before it ends up in your cup, it's already 4-6 months old. At Teasenz, we therefore spend a lot of time to source the tea leaves fresh from origin, which are then directly packed in sealed aluminium bags that protect the leaves from deterioration.
Read also more about tea storage in this article: How to store loose tea properly.
Weight Loss Benefits
Drinking tea as part of a healthy weight loss diet is an excellent choice. It contains very low calories when you don't add sugar and/or milk. In addition, the caffeine boost energy expenditure levels during the day, while the polyphenols in tea boost fat oxidation.
However, while many studies are performed on white and green tea separately, there's no reliable study out there that compares both teas on their weight loss effects. It's said that white tea contains more polyphenols because it's not as heavily processed as black tea, and lot pan-fried like green tea. But believe that the differences are very small. After all, all leaf teas are made from the same Camellia sinenses tea plant.
If you drink tea to loose weight, you're in for the long-game. It's not a miracle drink that can shed weight quickly in a few days. Instead, it's a very low calorie and nutritious drink that can manage long-term health. If you make tea part of your daily diet, it will help you maintain a healthy body weight. The key to success isn't about choosing white or green tea, but it's about discovering tea and determining which individual tea you'll love for its taste and flavour. Only after you truly embrace the tea, you can sustainably drink it for the long-term and the results will come.
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