Well, Imagine your in a shopping mall, and You suddenly notice the famous Costa Coffee shop. And it suddenly got you thinking: How was coffee even Invented?

Introduction

Well, you went into the Coffee shop and saw a very old man And a thought came into your head: what year and who made Coffee? Well, you’re going to find out now.Who Made CoffeeWell, in olden times, people used to go to the Coffee Rainforests in the Ethiopian plateau. There, Legends say that the goat herder Kaldi first discovered the potential of these beloved beans.

Who Made Coffee

Well, you should know what the history of Coffee is!Coffee cultivation and trade began on the Arabic Peninsula. By the 15th century, coffee was being grown in the Yemeni district of Arabia and by the 16th century it was known in Persia, Egypt, Syria, and Turkey.

What is the History of Coffee?

Well, Where It still came from ages ago: The Ethiopian Plateau. It is a Really nice rainforest with lots of greenery and as it says in the title, it rains A a lot there and also because it is in Ethiopia.

Where Did Coffee Come from?

Well, It turns out, the Result is not very good. Coffee prices hit a 10-year high, rising more than any other commodity this year. It's not just the caffeine that's making the market jittery. Coffee prices rose to a decade high on Wednesday, fueled by a shipping crunch, a spike in demand, and dry weather.

Is the Price Of Coffee To High?

Well, it turns out that you can add extra ingredients or sweeteners, Like nutmeg but it still wouldn’t taste as good, or for you it may taste bitter. So i just recommend you to. Just put sugar in your coffee, and also you can add jaggery instead of sugar.

How would Coffee Taste without   Sugar?

Well, if you think that everything about Coffee is negative, well almost everything, then you’re... RIGHT!Well, Caffeine has a negative impact on almost everything in the human body.

What is Negative about coffee and what is Positive about Coffee?

Hu said that moderate coffee intake—about 2–5 cups a day—is linked to a lower likelihood of type 2 diabetes, heart disease, liver and endometrial cancers, Parkinson's disease, and depression. It's even possible that people who drink coffee can reduce their risk of early death.

What is the benefit of drinking coffee?

Well, many people don’t know about coffee, and coffee is a common thing people have and it is important we know about coffee because there may be downsides of coffee. There is basically now positive things about coffee. That is why I wrote this article.

Coffee

Dubai has managed to secure its position as one of the safest cities in 2021. And there is no place like Dubai for a solo traveler – safe and fun with a side of luxury and adventure. Over the last few years, Dubai has consistently been ranked as one of the safest cities in the world to live in and visit. In fact in the 2019 National Agenda Index, a whopping 96.1 percent of UAE citizens stated that they feel safe and secure in the Emirati wonderland.

Dubai Is One Of The Safest Cities To Visit

Founded in 1833 as a small fishing settlement, Dubai revolutionized itself in the 1980s and 1990s as a world-class tourist destination.

1. Dubai is not that old!

With over 200 nationalities as residents, Dubai is one of the most multicultural and cosmopolitan cities in the world.

2. Over 200 nationalities as residents

3. It was not always oil! Way before tourism and oil mining boomed in Dubai, the city made its income from pearl diving with more than 300 pearl diving dhows (an Arabian sailing boat) based in Dubai Creek in the 19th century.

3. It was not always oil!

It is one of the many popular sports in Dubai with races taking place at Al Marmoom Camel Race Track.

4. Did you know Dubai uses robots instead of human riders for their Camel racing sport?

From Aston Martins, Bentley Continental GGTS, and Ferraris to Lamborghinis, the Dubai Police owns some of the fastest cars in the world. Their 254 mph Bugatti Veyron even holds a Guinness World Record for the fastest police car in service.

5. Nothing spells rich like Dubai Police’s fleet of supercars!

They move at the speed of 10m per second taking just one minute to reach the observation deck on the 124th floor!

6. Burj Khalifa is said to have the fastest elevators in the world

7. Burj Al Arab is affectionately known as the “world’s only seven-star hotel” and is world-renowned for its unique shape resembling the sail of a dhow.

7. Burj Al Arab is known as the “world’s only seven-star hotel”

It includes several shopping malls, a monorail, restaurants and cafes, private residences and luxurious resorts and hotels.

8. Dubai is home to the world’s largest man-made island, the Plam Jumeirah.

9. Love coffee? You’ll love Dubai. Coffee is very important in Arab culture and hospitality. Emirati coffee is made from roasted coffee beans and includes spices like saffron and cardamom. You can also indulge in the 24 Carat Gold cappuccino at Burj Al Arab.

9. Love coffee? You’ll love Dubai

Over the last few years, Dubai has consistently been ranked as one of the safest cities in the world to live in and visit. In fact in the 2019 National Agenda Index, a whopping 96.1 per cent of UAE citizens stated that they feel safe and secure in the Emirati wonderland. 

Travel

Dubai Is One Of The Safest Cities To Visit & 9 More Fun Facts

Coffee is unique among artisanal beverages in that the brewer plays a significant role in its quality at the point of consumption. In contrast, drinkers buy draft beer and wine as finished products; their only consumer-controlled variable is the temperature at which they drink them.Why is it that coffee produced by a barista at a cafe always tastes different than the same beans brewed at home?It may be down to their years of training, but more likely it’s their ability to harness the principles of chemistry and physics.

Making Great Coffee

We humans seem to like drinks that contain coffee constituents (organic acids, Maillard products, esters and heterocycles, to name a few) at 1.2 to 1.5 percent by mass (as in filter coffee), and also favour drinks containing 8 to 10 percent by mass (as in espresso). <a href="https://www.elsevier.com/books/espresso-coffee/illy/978-0-12-370371-2">Concentrations outside of these ranges</a> are challenging to execute. There are a limited number of technologies that achieve 8 to 10 percent concentrations, the espresso machine being the most familiar.

The Strongness Of The Beans

There are many ways, though, to achieve a drink containing 1.2 to 1.5 percent coffee. A pour-over, Turkish, Arabic, Aeropress, French press, siphon or batch brew (that is, regular drip) apparatus – each produces coffee that tastes good around these concentrations. These brew methods also boast an advantage over their espresso counterpart: They are cheap. An espresso machine can produce a beverage of this concentration: the Americano, which is just an espresso shot diluted with water to the concentration of filter coffee.

The Brew Methods

There are two families of brewing devices within the low-concentration methods – those that fully immerse the coffee in the brewing water and those that flow the water through the coffee bed.From a physical perspective, the major difference is that the temperature of the coffee particulates is higher in the full immersion system. The slowest part of coffee extraction is not the rate at which compounds dissolve from the particulate surface. Rather, it’s the speed at which coffee flavour moves through the solid particle to the water-coffee interface, and this speed is increased with temperature.

When Coffee Meets Water

Pour-overs and other flow-through systems are more complex. Unlike full immersion methods where time is controlled, flow-through brew times depend on the grind size since the grounds control the flow rate.The water-to-coffee ratio matters, too, in the brew time. Simply grinding finer to increase extraction invariably changes the brew time, as the water seeps more slowly through finer grounds. One can increase the water-to-coffee ratio by using less coffee, but as the mass of coffee is reduced, the brew time also decreases. Optimization of filter coffee brewing is multidimensional and tricky.

Brewing Isn't A Simple Matter

Even if you can optimize your brew method and apparatus to precisely mimic your favourite barista, there is still a near-certain chance that your home brew will taste different from the cafe’s.There are three subtleties that have a tremendous impact on the coffee quality: water chemistry, particle size distribution produced by the grinder and coffee freshness.

Other Variables To Control

Given coffee is an acidic beverage, the acidity of your brew water can have a big effect. Brew water containing low levels of both calcium ions and bicarbonate (HCO₃⁻) – that is, soft water – will result in a highly acidic cup, sometimes described as sour. Brew water containing high levels of HCO₃⁻ – typically, hard water – will produce a chalky cup, as the bicarbonate has neutralized most of the flavorsome acids in the coffee.

The Water Chemistry

Every coffee enthusiast will rightly tell you that blade grinders are disfavored because they produce a seemingly random particle size distribution; there can be both powder and essentially whole coffee beans coexisting. The alternative, a burr grinder, features two pieces of metal with teeth that cut the coffee into progressively smaller pieces. They allow ground particulates through an aperture only once they are small enough.

Particle Size Distribution By The Grinder

Roasted coffee contains a significant amount of CO₂ and other <a href="https://doi.org/10.1111/j.1745-4557.2006.00093.x">volatiles trapped within the solid coffee matrix</a>: Over time these gaseous organic molecules will escape the bean. Fewer volatiles means a less flavorful cup of coffee. Most cafes will not serve coffee more than four weeks out from the roast date, emphasizing the importance of using freshly roasted beans.

Coffee Freshness

So don’t feel bad that your carefully brewed cup of coffee at home never stacks up to what you buy at the café. There are a lot of variables – scientific and otherwise – that must be wrangled to produce a single superlative cup. Take comfort that most of these variables are not optimized by some <a href="https://doi.org/10.1137/15M1036658">mathematical</a> <a href="https://doi.org/10.1186/s13362-016-0024-6">algorithm</a>, but rather by somebody’s tongue. What’s most important is that your coffee tastes good to you… brew after brew.

The Last Sip

Sciency thingies behind The Perfect Brew!

The science behind why what your barista achieves at the cafe tastes better than what you can come up with at home.

Stashed ideas

Brewing a great cup of coffee depends on chemistry and physics

Most of the caffeine we consume is found in coffee and tea, but it can also be found in some sodas, chocolate, caffeine pills, and decaf beverages. Caffein helps us feel alert, focused, happy, and energetic, even if we lack sleep. However, it can also raise our blood pressure and make us feel anxious. Caffeine is found the leaves and seeds of certain plant species. It's toxic to insects, but when they consume it in lower doses, such as found in nectar, it can help them to remember and revisit flowers.

Caffeine consumption

In the human body, caffeine acts as a stimulant for the central nervous system. It keeps us awake by blocking one of the body's sleep-inducing molecules, called adenosine. Your body gets its supply of energy by breaking down ATP, a high-energy molecule. In the process, adenosine is released. When adenosine docks at the receptors in your brain,  it activates a cascade of biochemical reactions that makes your neurons fire more slowly, making you get sleepy. Caffeine interfears with this process of slowing your neurons.

Why caffeine keeps us awake

Adenosine receptors are linked to the dopamine receptors in some neurons in the brain. Dopamine promotes feelings of pleasure. When adenosine docks in one of these paired receptors, it makes it harder for dopamine to fit in its own place and interrupt mood-lifting. But when caffeine takes the place of adenosine, dopamine can fit in its own place and increase the mood.

Caffeine boost positive feelings

Caffeine can reduce the risk of diseases like Parkinson's,, Alzheimer's, and some types of cancer. It can increase the body's ability to burn fat.  However, caffeine can also raise your heart rate and blood pressure, cause increased urination or diarrhoea, and cause insomnia and anxiety.  The body adapts to regular consumption of caffeine. When you suddenly quit caffeine, you may experience withdrawal symptoms such as headaches, tiredness and depressed moods.

Caffeine long-term effects

View full lesson: http://ed.ted.com/lessons/how-does-caffeine-keep-us-awake-hanan-qasim Over 100,000 metric tons of caffeine are consumed around the world every year. That’s equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven’t had enough sleep — but it can also raise our blood pressure and make us feel anxious. So how does it keep us awake? Hanan Qasim shares the science behind the world’s most widely used drug. Lesson by Hanan Qasim, directed by Adriatic Animation.

How does caffeine keep us awake? - Hanan Qasim

Pre-warm your mug. Before adding water to your ground beans and filter, pour some hot water into your mug. Your coffee will stay hot and keep flavour longer. Not-quite-boiling. The water temperature for pouring directly over the grounds should be 200 degrees F. Don't save your beans for special occasions. The further you get for the roast date, the weaker the flavour. The golden ratio of coffee to water is 1:16 for above-average beans (about 22 grams of coffee to 253 grams of water).

Improving your coffee game

If you have an espresso machine at home, it is helpful to know how to use it properly. <ul><li>Ensure the screen on top of your ground, compacted beans is totally wet before brewing. This will ensure that water runs evenly through the entire thing, the coffee sitting beneath will be hydrated evenly, and your flavour will be concentrated and consistent.</li><li>Break up the crema - that tan, creamy froth on top of the dark brown espresso - to release all the aromatics.</li></ul>

Tips for making espresso

From pre-warming mugs to water temperature guidance, we're here to improve your morning ritual with 5 quick tips.

Coffee

Dubai Is One Of The Safest Cities To Visit & 9 More Fun Facts

Brewing a great cup of coffee depends on chemistry and physics

How does caffeine keep us awake? - Hanan Qasim

5 Tips for a Better Cup of Coffee

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