Meet your new favorite summer coffee drink – Cold Brew.
Cold Brew is the perfect summer beverage. That is why we suggest you don’t waste more time and quickly taste it! We have gathered everything you need to know about Cold Brew in our article because we can’t wait for you to start enjoying this tasty drink. We’ll tell you its story, we’ll give you a recipe or two to prepare it at home and we will mention the pots you can prepare it in. Have we mentioned already that this coffee beverage is extremely beneficial for your health? Read on!
What is Cold Brew?
Cold Brew is coffee that has been soaked in cold water and then filtrated.
Instead of soaking freshly roasted ground coffee in hot water, for Cold Brew you use cold water and let the extraction continue between 8 and 24 hours, depending on the recipe you follow. But we will not be speaking about recipes yet.
The history of Cold Brew
So if your guess is that Cold Brew is new brewing method only because it is on fashion, you are wrong. Kyoto-style coffee is the oldest Cold Brew we know about and it dates from 17 century. Probably this way of brewing coffee became popular in Japan, where cold brew tea has its traditions, because of Dutch sailors.
Well, yes – Dutch sailors are known to be the first to prepare cold coffee concentrate for their long sailings around the globe. And they probably mixed it with hot water to drink it.
So this is how Cold Brew was consumed in Europe, America and Asia in the 19 century when it gained popularity there. It also became part of army’s beverage supply by the same time.
How did Cold Brew become popular?
In the 1960s, American Todd Simpson traveled to Peru in search of coffee and there he tasted the local cold extracted coffee. When he returned to the States, he had the idea of a pot in which one can prepare it at home. As a result, The Toddy Cold Brewing System was born. This brewing method though remained largely unknown until 2015. It was then when Starbucks started preparing Cold Brew coffee of their own. It became very popular in the USA and until 2017 its consummation grew with 450%. Perhaps this is the reason why Cold Brew became very famous in many tropical countries after that.
The science behind Cold Brew
Coffee beans contain about 1000 different chemical compounds, probably the most famous of which is caffeine. In addition, we can add malic acid (a bitter compound found in green apples) and furaneol (a sweet compound found in strawberries). When we brew coffee, they are extracted from the beans.
Actually, when we brew coffee, fermentation takes place and it involves two important factors: water temperature and the time during which coffee interacts with water.
When fermentation occurs with cold water, the process is different that the fermentation with hot water.
When using hot water, these compounds are released quickly – within seconds or minutes, depending on the brewing method. On the other hand, the higher temperature also causes coffee acids and oils to degrade and oxidize more quickly. This can lead to undesired effects like excessive acidity and bitterness.
The cold filtration method depends on a long preparation time instead of high temperature. This produces a completely different flavor profile – sweeter and balanced. This is because many of the compounds with sweetest taste are soluble even in cold water, but oils and acids are not.
A number of studies show that Cold Brew has a lower acidity. Compared to coffee made with hot water, it is 67% less acidic. Therefore, if you complain of heartburn when drinking coffee, you can safely bet on Cold Brew – its low acidity maintains the pH balance of the body.
What are the benefits of Cold Brew?
As we have told you many times, quality coffee brings many benefits to our body.
Let’s now see how beneficial Cold Brew is for us.
It may increase metabolism
Metabolism is the process by which body transforms food we ingest into energy. The faster your metabolism, the more calories you burn when your body is at rest. Like coffee made with hot water, Cold Brew contains caffeine, which causes your metabolism to increase by up to 11%.
In a study conducted with 8 male participants who took caffeine, calory burning increased by 13% and fat burning doubled. These results are much higher than the results of those that have ingested placebo or beta-blockers (medicines for blood pressure and circulation) in the study.
Cold Brew’s caffeine content is almost the same as that of coffee made with hot water. Although as a concentrate Cold Brew is extremely saturated with caffeine, when we dilute it, the caffeine content decreases to similar levels as that of regular coffee. According to the World Health Organization, the healthy dose of caffeine is up to 400 mg. per day. One cup of filter coffee (240 ml.) contains 140 mg of caffeine. For pregnant women, the dose is 200 mg. daily. And in 1 cup of Cold Brew concentrate caffeine can be about 200 mg.
It may reduce the risk of heart disease
Heart diseases are the most common cause of death in the world. Cold Brew contains ingredients that can reduce the risk of heart disease – such as caffeine, phenolic compounds, magnesium, trigonelline, quinidine and lignans. They increase insulin sensitivity, stabilize blood sugar and lower blood pressure. Cold extracted coffee also contains chlorogenic acids (CGA) and diterpenes, which act as antioxidants and anti-inflammatory drugs.
Therefore, if you drink between 3 and 5 cups of coffee a day (450-750 ml), this can reduce the risk of heart disease by up to 15% compared to people who do not consume coffee.
It may reduce the risk of type 2 diabetes
In chronic type 2 diabetes, blood sugar levels are too high.
The summary of three large-scale studies on more than 1 million Americans published in Diabetologia 2014, emphasized that those who have increased their coffee intake for 4 years have an 11% lower risk of developing type 2 diabetes. 2. At the same time, those of the participants who reduced coffee consumption by more than 1 cup per day for the same period, have shown that the risk of disease increased by 17%.
Cold Brew is naturally sweet. Thanks to the fact that during the cold extraction coffee beans are not exposed to high temperatures, the drink has a richer taste and increased natural sweetness. Therefore, Cold Brew can help those of you who want to finally part with the sweeteners in coffee.
It may prolong life
Because it contains antioxidants the same way as coffee made with hot water contains, Cold Brew can reduce the overall risk of premature death and death caused by specific diseases. Research on this is numerous, but we will cite only one published in The New England Journal of Medicine over the years.
Th above mentioned study was conducted over several decades and involved 229,119 men and 173,141 women between 50 and 71 years of age. The results show that the more coffee we consume, the lower the risk to our health from death caused by heart disease, respiratory disease, stroke, injuries, accidents, diabetes and infections. The reason for this are antioxidants in coffee, which help prevent cell damage. And it is exactly damaged cells that lead to chronic diseases such as heart disease, type 2 diabetes and cancer.
Although various studies show that coffee made with hot water contains more common antioxidants, in Cold Brew we find some of the most powerful antioxidants, such as caffeoylquinic acid.
It can boost your mood
According to the summarized results of a group of studies published in the National Academies Press, caffeine improves mood, especially for those suffering from sleep disorders. A study of 370,000 participants found that those who drank coffee had a lower risk of depression. With each cup of coffee we drink, the risk of depression is reduced by 8%. This is probably due to caffeine. This is evidenced by the results of a study with participants aged 63-74 years, published in The Australian and New Zealand journal of Psychiatry. Intake of 3 mg of caffeine per kilogram of body weight improves mood by 17%.
What is the difference between Ice Coffee and Cold Brew? Ice Coffee is made by making coffee with hot water and when the drink has cooled, it is served with ice.
3 basic rules for making delicious Cold Brew at home
1. Experts advice that it is best to choose coffee with a medium roast profile
The cold extraction brings out natural flavors of chocolate, almonds and caramel in coffee beans, and they are felt more strongly in such a profile. This is not a golden rule, though, because after all, everything depends on individual taste. So, feel free to experiment.
2. How you grind your coffee is of extreme importance
For Cold Brew you need coarse ground coffee. Remember, this prevents bitterness in the taste. When you use coarse ground coffee, the drink will not be cloudy, and the taste will be well extracted. As we always repeat, it is best to buy coffee beans and grind it just before brewing.
3. Be careful with the coffee / water ratio
Use a higher coffee / water ratio. Some baristas recommend ¾ a cup of ground coffee to 4 cups of water. Others – ratio ½. In any case, test and choose the best option for you. Remember that most recipes are for Cold Brew concentrate, which you can dilute with ice, hot water, milk or any other beverage that you may find suitable. Recipes and proportions can also vary depending on the appliance in which the cold extracted coffee is prepared.
Cold Brew equipment
There are a huge number of appliances for making cold filtered coffee on the market today. And this is easily explained – Cold Brew is very practical! Think about it – you make coffee within 24 hours, which you can consume up to 3 days laster. Some Cold Brew fans who have already conducted various experiments say that it stays fresh up to 2 weeks later! It all depends on the quantity and your desire. The taste of coffee kept in the refrigerator will not change.
We recommend two Cold Brew appliances because we can testify for the results they produce!
In addition, we have two special offers – get our latest blend, specially prepared for Cold Brew and we will add as a present a device to prepare it at home!
The perfect set for Cold Brew fans – with our specially mixed House Blend Cold Brew and a gift – Japanese company Hario’s Cold Brew pot.
Our recipe for Cold Brew
As already mentioned, there are different ways to prepare Cold Brew. That’s why we encourage you to try different recipes while choosing your favorite. Still, it’s good to start somewhere. For starters, we offer you a simple and tried recipe that we really like!
Grind 50g House Blend Cold Brew – coarser, as for the French press, for example.
Pour it into the filter Cold Brew – Hario and pour 600 ml of cold water.
Close the top of the pot and leave in the refrigerator for 8 hours.
After 8 hours, remove the filter from the pot and your Cold Brew coffee is ready for you to enjoy. It does not need to be diluted with ice or other beverages.
And here’s how to make a refreshing cocktail with Cold Brew coffee!