What are the coffee beans?

The seed of a coffee plant is actually called coffee beans that are wrapped in the purple or red fruit is grown on coffee plant .as it is a type of cherry so like the seed of other cherries is called stone fruit. These are called beans because they have a shape like true beans. These coffee berries are dicotyledons but they may also have one cotyledon it is scientifically proven that the seed that has one flat stone i.e. Cotyledon has more taste the common two stone seed the unusual one stone coffee seed is also called peaberry and it occurs only 10-15% of the total yield.

Coffee plant It belongs to the

• Kingdom    Plantea
• Family        Rubiaceae
• Order         Gentianales
• Genus         Coffea

The coffee plant is shrubby in nature. Grown in the tropical areas of Asia and southern Africa, the plant needs low temperature i.e below 10C^. And require heavy rain at the time of cultivation also before the ripening of the fruit. The plant contains a large amount of caffeine and seed of the plant are used for taste in different beverages, the plant ranked as one of the most widely traded crops and is important export of the developing countries.

Here are the top ten differences between Robusta and Arabica coffee beans

Types of coffee beans

Coffee is the drink that attracts us with its fragrance and taste for about 1300-1400 year it is among the oldest drinks known to main kind has three main types. About 60 -65 countries in the world that cultivate the coffee.

Arabica

Arabica is rich in flavour, contains little caffeine and accounts for 70% of world coffee production. The main producers are Brazil, Colombia, Mexico, Guatemala, Ethiopia, Hawaii and India. Soft varieties are rich in aromas and are used in direct coffee, while Brazilian varieties are used in blended coffee because they have a particularly good aroma when mixed with other coffee beans.

Robusta

Robusta is used for instant coffee and is mainly produced in Vietnam, Indonesia, Uganda, Congo and the Philippines. Unlike Arabica varieties, they grow well in difficult conditions but have slightly lower quality, a hard and weak aroma. It is used as an inexpensive raw material for coffee, representing 30% of the world coffee harvest and high yield. Read more about Kona Coffee.

you can easily roast coffee Beans at home. If you make coffee at home, you will be sure that all the coffee you make is fresh and you can bake it as you wish. Coffee Roasts Guide

How long brewed coffee stays good

The coffee that is brewed in the morning if put in a common site form a day old. Anyone who drank this coffee when it is fresh had remembered the taste if check this coffee after some time find that the taste is not nice.

In common, sense the brewed does not remain good forever, in this article we try to find that when / why it does exactly lost its taste and freshness.

Let us find the reason.

How long brewed coffee does is good for a drink?

The simple and short answer to this question is that about coffee stay good for almost 30minutes it will stay long if put in an air tied container.

Why the taste and freshness of brewed coffee lost?

The reason behind this is the coffee is continuously oxidized by the air around it let us put some light on the chemistry of oxidation of brewed coffee.

Oxidation of coffee:

When you put the coffee open in contact with air its oxidization process start, which is invisible to the naked eye, but have a significant effect on the taste of coffee because the oxidation disintegrates the taste of the coffee and release these flavour compound of coffee in the air.

The study shows that the oxidation of roasted coffee is more rapid than the unroasted coffee bean because when we roast the coffee it increases the surface area of the coffee. As we know, the oxidation is directly proportional to the surface area more rapidly will be the oxidation.

When we brew the coffee beans, we are actually oxidizing it. Because when the coffee is exposed to water they are releasing there organic compounds like protein, amino acid, lipids, fats, which are there taste compound and also released acid in the water.

We know the process that produces the taste in the cup of coffee and we love this process although is a chemical process but avoid this chemical process i.e. oxidation before brewing the coffee.

Now,

Why is the taste of coffee turn bitter from sweet or sour?

As the oxidation continues once the coffee e is brewed .when someone allows the coffee to stand even for a short period of time he just initiates the reaction of hydrogen (H) with oxygen (O) this will increase the PH level of coffee. Hence, the taste of the coffee turns bitter from sweet.

Especially this is done when you are brew the coffee with the French press the thing that is worst and which is responsible for the bittering the taste of the coffee is allowing the coffee for 4-5 minute after brewing the coffee .. In addition, after when push the plunger down the brewing of the coffee is continue which take a long time during all this the sweet taste of the coffee is turn to the horrible bitter taste. To avoid this terrible bitter taste pour out coffee from the press as soon as possible.

The stale ground is made for stale coffee

As coffee is food so like other food it doesn’t stay forever and doesn’t retain its freshness and taste forever

So older the ground coffee the more the chance for its rapid oxidation. Moreover, they lose their taste even after the passage of minor time after brewing.

However, like milk or other foodstuffs, the old ground coffee doesn’t spoil and don’t have the characteristics an unpleasant smell.

Do not worry about all this the stale coffee is not dangerous for drinking it just have an unpleasant taste. The stale coffee is not dangerous until you put milk in it.

 

Tips to store the freshness of the brewed roasted coffee

1. Once the coffee is roasted be careful in the storing the roasted coffee. stored the coffee in an air tied jar so that the chances of oxidation will be minor. so that the roasted coffee can be used for more than one week.
2. Oxidation depends upon the surface area more will be oxidation, grind coffee has more surface area than the un grind coffee bean. So grind the coffee just before brewing will retain the freshness of the roasted coffee.
3. Put the coffee bean away from the moisture.
4. Store the coffee in cool dark place heat and light also matter in the lasting the freshness.

How to know the coffee is rancid?

Always use the hygiene method to make the coffee so that you will be able safe yourself from the foodborne disease

As we know that all the old and fresh coffee look the same.

1.  Therefore, the best way to know ether the coffee is good or bad is to use your nose to do this job. Because such type of coffee has rotten smell rather than pleasant aroma also its taste will also go, but it is strange that if you use such coffee will not harm you.
2. When you put the coffee in the water their colour is different from common dark brown to light brown.
3. The sweet taste of the coffee will disappear.
4. Check the expiry date on the bag of the coffee ground.

How long can you store the brewed coffee?

The normal coffee should be drink as soon as possible if you pour the coffee in open container that it will be drinkable for up to 30minutes max, in case if you stored it in air tied container than yours coffee will stay up to 2 hours.  If you are talking about the cold-brewed coffee that can be stored up to 2 weeks are more.  If and only if it is stored properly in an air tied container. As the cold-brewed, coffee is concentrated,   so it takes more time to oxidize that is why we can store the cold-brewed coffee for long time normal brewed coffee.

How long the brewed coffee can be stored in fridge?

Brewed coffee can be up to 1 week inside the fridge, but will lose its freshness color and smell that a fresh cup of coffee has. Before putting the coffee make sure, that cover it proper so that the smell of other food cannot be mix with the smell of coffee. Without a fridge, the brewed coffee will stay fresh for two hours maximum.

Is it safe to drink a day old coffee?

Do not drink the one-day-old coffee especially when nit gone spoil has a rotten smell.

Never drink a day old coffee if you put milk in it until you put it in the fridge because it has chances to form a mould accumulate at the surface of the coffee.

 How long does milk coffee can stay good?

According to a report published by the FDA, the product as milk or that contain milk should not be placed out of the fridge for more than 2 hours. The same thing went to happen with the milk coffee so if you have a plan to drink milk coffee than add the milk just before drinking or if you add and your mood went change than place the coffee in the fridge with proper covering. Enjoy it when you want.