茶叶真的放得越久就越好吗？

一、茶叶越陈越香？看储藏条件

其实早在前几年，央视就曾经曝光过所谓的“古树茶”。很多所谓的“古树茶”其实是普通茶冒充的，价格却翻了很多倍。人们以为“百年茶树很稀有，物以稀为贵”。然而“古树茶”并不见得就比其他茶叶更好。

茶叶也属于食品，且相对容易变质。可以说，茶叶保存，是个非常复杂的事情。不同的茶叶，要求的温度、湿度、光照等条件都会有所差异。

例如绿茶，一直封装在铝箔袋中，放在冰箱冷冻室里，茶叶不会受潮，化学反应慢，保质期也会久一点。但若是放在室温，潮湿的位置，可能放几个月就会变了风味。

喜欢喝普洱、黑茶的，都讲究“越陈越香”，但其实茶叶好喝的前提是，「合适的保存条件」以及「适当的时间」。

所谓的“越陈越香”只是一种营销概念，让茶也更具收藏性与增值性，但真的有多少人会“舍得”打开放了30年、50年的茶叶来品。

二、这4种“垃圾”茶叶，可能比“土坑酸菜”还要坑

前段时间，315揭露了“足尖上的酸菜”，让全国人民十分“辣眼睛”。而在茶叶界，有几种茶也同样坑人，喝了可能还伤身。

1、色素茶

很多人在买茶时，会先看一看“颜值”，认为颜色翠绿、或是棕色的茶叶品质更佳。但其实，很多的茶叶在加工处理的过程中，就会变得非常的难看。有些黑心厂家就会加入色素，来改善茶叶的颜色，以此来达到把茶叶卖出去。

而这些色素里，最常见的就是铅铬绿，长期饮用，可对人体的中枢神经和器官造成极大的损害。

2、香精茶

茶香是品茶人讲究的“茶道”之一，为了欺骗消费者，黑心商家就会给茶叶加入香精，以次充好。香精茶香味浓烈，极不自然。一般用温水冲泡，已经有香味肆意，还是非常好辨认的。

3、滑石粉茶

滑石是硅酸镁盐类矿物，其用盐酸处理过的粉末就是滑石粉，滑石粉已经被世界卫生组织列为3类致癌物。有些黑心商家会用滑石粉，来掩盖劣质茶叶发黑的叶底，茶叶看起来非常的舒服，口感也会相对鲜爽。

4、天价茶

在一些消费者眼里，价高就是品质的代表。但其实有些天价茶不一定真的好。国家茶叶质量监督检验中心高级工程师沈红表示：茶叶的价格因素，与产地、采摘时间、制作工艺、品牌价值等都有很大关系。

高价茶背后可能还藏着送礼文化，通过豪华包装抬高价格，但茶叶本身的品质，并不值市场价。

那应该如何挑选好的茶叶呢？茶叶的品质与地理位置、茶叶原料、加工工艺、存储环境等因素有关，想要挑选好茶叶，记住这三步：

选择正规厂家、符合国家标准的；

买茶前，尽量先品尝一下；

不同茶叶有不同的选购标准，最好先在网上了解一下茶叶知识，再入手。

三、长期喝茶，身体能收获什么？

在国人眼中，茶有两个基本属性，一是健康，二是神秘。那么，茶究竟如何发挥其健康的效用？

茶有3大辅助功能：抗氧化、辅助代谢、增强愉悦感，而这些功能主要源于茶叶中的茶多酚、茶氨酸、茶多糖。

那么，茶具体对身体有哪些好处呢？

1、降低糖尿病、心血管疾病的风险

发表在《美国临床营养学杂志》，来自北京大学公共卫生学院李立明教授等，一项涉及50多万中国成年人慢病数据研究发现：一般人每天喝绿茶，可预防2型糖尿病。

另外，发表在《欧洲预防心脏病学杂志》来自中国科学院院士顾东风团队的研究显示，经常喝茶，能够降低心脑血管事件及全因死亡发生风险，尤其于长期坚持喝茶习惯的人群、男性以及喝绿茶者，健康获益更为显著。

2、调节老年人群的“代谢综合征”

在《中华老年医学杂志》中的一篇名为《饮茶与老年代谢综合征关系的研究进展》中指出，喝茶可以调节老年人群的“代谢综合征”。

研究指出，茶叶中富含对人体有益的多酚类物质，对降低血脂、减少体脂形成等有所助益。

最后要提醒的是，泡出来的茶如果出现霉味、烟味、青味、酸味、香精味、臭味等，可能暗示了茶叶变质，若碰到这类茶叶，马上倒掉。否则喝下去不仅不养生，还可能要去“看医生”。

1. The older the tea, the more fragrant it is? see storage conditions

In fact, as early as a few years ago, CCTV had exposed the so-called "ancient tree tea". Many so-called "ancient tree teas" are actually fake teas, but the price has multiplied many times. People think that "a hundred-year-old tea tree is very rare, and what is rare is precious". However, "ancient tree tea" is not necessarily better than other teas.

Tea is also a food and is relatively easy to spoil. It can be said that tea preservation is a very complicated matter. Different tea leaves require different conditions such as temperature, humidity, and light.

For example, green tea, which has been packaged in aluminum foil bags and placed in the freezer of the refrigerator, will not get damp, the chemical reaction will be slow, and the shelf life will be longer. But if it is kept at room temperature and in a humid place, it may change its flavor after a few months.

Those who like to drink Pu'er and dark tea pay attention to "the older they are, the more fragrant they are", but in fact, the premise of good tea is "appropriate storage conditions" and "appropriate time".

The so-called "older and more fragrant" is just a marketing concept, which makes tea more collectible and value-added, but how many people will "willing" to open up tea products that have been open for 30 or 50 years.

2. These four kinds of "garbage" tea may be more pitted than "sauerkraut"

Some time ago, 315 exposed the "sauerkraut on the toes", which made the people of the whole country very "spicy eyes". In the tea industry, there are several kinds of teas that are also deceptive, and may even hurt the body after drinking.

1. Pigment tea

When many people buy tea, they will first look at the "face value" and think that green or brown tea leaves are of better quality. But in fact, many tea leaves will become very ugly in the process of processing. Some black-hearted manufacturers will add pigments to improve the color of the tea, so as to sell the tea.

Among these pigments, the most common is lead chrome green. Long-term drinking can cause great damage to the central nervous system and organs of the human body.

2. Essence tea

The aroma of tea is one of the "tea ceremonies" that tea connoisseurs pay attention to. In order to deceive consumers, black-hearted merchants will add flavors to tea leaves to make them shoddy. Essence tea has a strong aroma and is extremely unnatural. Usually brewed with warm water, it already has a wanton fragrance, and it is still very easy to identify.

3. Talc powder tea

Talc is a magnesium silicate mineral, and its powder treated with hydrochloric acid is talc, which has been classified as a class 3 carcinogen by the World Health Organization. Some black-hearted merchants will use talcum powder to cover the black bottom of inferior tea leaves. The tea looks very comfortable and the taste will be relatively fresh.

4. Sky-high tea

In the eyes of some consumers, high price is the representative of quality. But in fact, some high-priced teas are not necessarily really good. Shen Hong, senior engineer of the National Tea Quality Supervision and Inspection Center, said: The price factor of tea has a lot to do with the place of origin, picking time, production technology, and brand value.

There may be a gift-giving culture behind the high-priced tea, which raises the price through luxurious packaging, but the quality of the tea itself is not worth the market price.

How to choose good tea leaves? The quality of tea is related to factors such as geographical location, tea raw materials, processing technology, storage environment, etc. If you want to choose good tea, remember these three steps:

Choose regular manufacturers that meet national standards;

Before buying tea, try to taste it first;

Different teas have different purchasing criteria. It is best to learn about tea knowledge on the Internet before starting.

3. What can the body gain from drinking tea for a long time?

In the eyes of Chinese people, tea has two basic attributes, one is health, and the other is mysterious. So, how exactly does tea exert its health benefits?

Tea has three auxiliary functions: anti-oxidation, auxiliary metabolism, and enhancement of pleasure, and these functions are mainly derived from tea polyphenols, theanine, and tea polysaccharides in tea leaves.

So, what are the specific benefits of tea to the body?

1. Reduce the risk of diabetes and cardiovascular disease

Published in the "American Journal of Clinical Nutrition", a study involving chronic disease data of more than 500,000 Chinese adults from Peking University School of Public Health and others found that drinking green tea every day can prevent type 2 diabetes.

In addition, a study published in the "European Journal of Preventive Cardiology" from the team of Gu Dongfeng, an academician of the Chinese Academy of Sciences, shows that drinking tea regularly can reduce the risk of cardiovascular and cerebrovascular events and all-cause death, especially for people who have long adhered to the habit of drinking tea, The health benefits were more pronounced for men and those who drank green tea.

2. Regulate the "metabolic syndrome" of the elderly

In the "Chinese Journal of Gerontology", an article titled "Research Progress on the Relationship between Tea Drinking and Metabolic Syndrome in the Elderly" pointed out that drinking tea can regulate the "metabolic syndrome" of the elderly population.

Studies have pointed out that tea is rich in polyphenols that are beneficial to the human body, which can help reduce blood lipids and reduce body fat formation.

Finally, it should be reminded that if the brewed tea has a musty, smoke, green, sour, essence, and odor, it may indicate that the tea has deteriorated. Otherwise, it is not only unhealthy to drink, but also may go to "see a doctor".