Drink instant coffee with restraint and not too much.
A few days ago, an article entitled "you can't drink instant coffee, there are more carcinogens than smoking" spread on the Internet. The article says instant coffee is highly carcinogenic and contains higher concentrations of acrylamide than cakes, French fries, potato chips and cigarettes. Nguyen Guangfeng, an expert at the Food and Nutrition Information Center, said that this statement is a typical logical trap. No food in the world is absolutely safe, and it is not clear whether acrylamide causes human cancer. Countries and international organizations around the world are paying attention and studying.
Drinking coffee alone is not enough to cause cancer.
It is understood that acrylamide is a white crystal chemical. In 1994, the International Agency for Research on Cancer (IARC) evaluated its carcinogenicity and classified acrylamide as two types of carcinogens (2A), that is, human carcinogens. According to Ruan Guangfeng, it is not clear whether acrylamide causes human cancer, and there is still a lack of epidemiological evidence. "some special occupations may cause nerve damage or other health damage due to high doses, but not enough to cause cancer by eating or drinking."
So, where does acrylamide come from in instant coffee? According to relevant data, raw green coffee does not contain acrylamide. when green coffee is roasted at high temperature into coffee beans, it contains about 300 micrograms of acrylamide per kilogram; instant coffee is extracted from coffee beans, the amount of acrylamide per kilogram is as high as 700 to 1000 micrograms. In general, the acrylamide content of instant coffee is 2 to 3 times that of coffee beans.
Acrylamide is produced when fried in deep frying.
When the heating process such as baking and frying exceeds 120 ℃, acrylamide will be produced in the food, and the higher the temperature and the longer the heating time, the more acrylamide will be formed. Therefore, including potato chips, French fries, mugi-cha, fried dishes, whether fried or non-fried, as long as the degree of heating is enough, acrylamide will be produced.
According to estimates by the Hong Kong centre for food safety, about 45% of the acrylamide consumed by locals comes from cooking. This is mainly due to the cooking style of stir-fried zucchini, for example, the acrylamide content of fried zucchini can reach 360 micrograms per kilogram, higher than French fries.
'some foods have high levels of acrylamide, but we generally don't eat much acrylamide, 'Mr. Ruan said. The World Health Organization estimates that the average level is 20-30 micrograms per person per day. Although the sources of acrylamide consumed by consumers in different countries are different, there is actually not much difference, and the intake of Easterners will be slightly lower than that of Westerners. For example, the average intake of our country is about 18 micrograms (in terms of 60 kg body weight). On the whole, it is not a concern. "
Drink instant coffee in moderation
Many office workers like to make instant coffee to quench their thirst and refresh themselves in the office. However, Ruan Guangfeng cautioned that although instant coffee has a low risk of cancer, from a health point of view, the intake of foods containing acrylamide should be reduced.
A study in Japan shows that, depending on people's physique, drinking more than five cups of instant coffee a day may not be refreshing. This is because instant coffee does not have the original concentration of beans, but adds extra flavor such as cream, syrup, coffee companion, and so on. In a serving of instant coffee, the real coffee ingredients are only about 1 coffee 4 to 1 coffee 3 of raw coffee.
At present, there are many so-called "several in one" instant coffee on the market, which is actually instant coffee with coffee companions. Coffee companions mostly contain hydrogenated vegetable oils, and the trans fatty acids in hydrogenated vegetable oils do not have any positive effect on the human body, but will increase the risk of cardiovascular and other diseases.
Ruan Guangfeng suggested that most of the current studies on the health value of coffee are based on black coffee, and consumers are advised to choose more black coffee and add milk as a "companion" when drinking it.
- Prev
Ideally, how much is a cup of coffee worth?
Pickers are shuttling through coffee plantations on the outskirts of San Jose, Costa Rica, picking coffee beans to Cajuerari hanging on his chest. In Central America, the main coffee producing area of the world, Cajuella is both a coffee basket and a bookkeeping unit. Pick a card of Huera (15kg) coffee beans and the wage is $2. Although it's not enough to buy the cheapest cup at Starbucks in San Jose.
- Next
How to be a good cafe owner
I don't know who first said this sentence, love a person let him open a cafe, hate a person also let him open a cafe, this sentence is very appropriate to describe the actual state of a cafe operator, enjoy the leisure and quiet brought by the cafe. And I will continue to pay for it. The nine basic characteristics of coffee shop owners are different from ordinary meals.
Related
- The drink formula is reversed! Buy coffee and get half a cup of apples?!
- Early risers spend more money?! Lucky jointly issued a Bug!
- The difference between cappuccino and latte How to make ice cappuccino The ratio of cappuccino coffee to milk
- What are the coffee tasting methods? How to appreciate a good cup of coffee? How to taste hand-brewed coffee?
- How to describe the richness of coffee? What exactly does coffee Body "mellow" mean? The most appropriate definition of coffee's richness
- What is the impact on the thickness of coffee flour? What does the Italian coffee substitute mean? Can the coffee powder be used if it is ground too thin?
- Coffee prices soared to hit a record high! Customer: I can't afford to drink anymore
- The heavier the "class flavor", the higher the density of coffee shops under the office building?!
- He was caught pretending to be a "shop assistant" and stealing equipment. The clue turned out to be...
- What well-known estates are there in the Vulcan region of Panama? What are the characteristics of Hartman Manor?