You’ve probably wondered if you can leave your coffee overnight and drink it the next morning without any problems.
How long does brewed coffee stay fresh?
First of all, you should know that after brewing the coffee, you have between 30 minutes and an hour to consume it, because only after this time the taste starts to change significantly.
This is because the coffee continues to oxidize after brewing.
Remember that coffee beans contain various substances such as lipids, proteins and alkaloids that, when in contact with water, release various acids and oils that ultimately determine the aroma and flavor of the cup of coffee.
Therefore, the coffee must not be left to stand for too long, as the reaction between oxygen and hydrogen causes the pH of the coffee to rise, which in turn increases the bitterness of the drink.
However, if you decide to let the coffee brew for more than 12 hours, it can be harmful to your health, since during this time various bacteria and fungi can accumulate, which together with the moisture can arise and grow.
Nevertheless, we would like to draw your attention to a few things:
- You can store brewed coffee in the refrigerator for up to 5 days. Flavor and aroma are lost during this time, but health risks are greatly minimized as bacteria need warm temperatures to grow.
- The hotter the coffee, the faster the oxidation process occurs.
- You should store your coffee in an airtight container to reduce oxidation.
- Black coffee can be kept at room temperature for more than 24 hours and is safe to consume as it is low in carbohydrates and protein. If you let it stand at room temperature for about a week, you may notice mold growth.
- An unusual color or a strange smell in the coffee are clear signs that the coffee has gone bad.
- When adding milk to your coffee, keep in mind that you should stop consuming it after 2 hours at room temperature. Milk should be stored at around 4.4°C. This prevents the formation of bacteria. However, if the latte has been stored in the refrigerator, it should be consumed within 24 hours of preparation.
- If you want to store cold brew coffee, remember that you can keep it in the refrigerator for 10 to 14 days as long as it doesn’t exceed 4.4°C.
- If you decide to store coffee, keep in mind that dark roasted beans lose their flavor faster than light roasted ones.
- The effects of caffeine remain in roasted coffee for several weeks.
- If you’ve added cream or sugar to your coffee, it’s best to drink it right away.
Can brewed coffee be stored in the fridge?
Freshly brewed coffee can be stored in the refrigerator, but should be sealed airtight. Remember that coffee absorbs moisture very well. It must therefore be well closed and protected so that its taste and aroma remain pure.
We therefore recommend storing the coffee in the rear, lowest part of the fridge, as this is the coldest part of the appliance and is therefore subject to the smallest temperature fluctuations.
Is reheating coffee a good idea?
If you take the coffee out of the fridge, you have to keep in mind that there may be problems when reheating it, as the coffee may lose its flavor and aroma.
This happens because coffee beans contain high concentrations of chlorogenic acids, which are broken down when the coffee is heated.
These chlorogenic acids belong to the group of aromatic phenolic acids that contribute greatly to the flavor and aroma of coffee.
Regardless of the brewing method or the type of coffee you use, the increasing bitterness of the coffee as it warms up is unavoidable,
In this regard, it is worth remembering that to reheat coffee, it is best to use the microwave, as the heat is more evenly transferred to the liquid.
Also make sure that the temperature is not too high, so that the loss of volatile compounds does not increase. A temperature of around 60°C (140°F) is ideal because at higher temperatures the water has more kinetic energy that is transferred to the volatile molecules, making them move faster and eventually being lost more easily.
However, if you want to use the coffee without heating it, you can make a cold coffee or even a frappé.
Can ground coffee and coffee beans be stored in the refrigerator?
It is not recommended to store ground coffee and coffee beans in the refrigerator, as it absorbs moisture and various odors.
Storage of green coffee
Green coffee, or green coffee beans, is best stored in an airtight container or bag in a dark place at room temperature.
Storage of roasted coffee beans
Roasted coffee beans should be stored in an airtight container such as a B. a glass are kept. There they can be kept fresh for about 2 to 3 weeks if protected from air and sun.
Roasted coffee beans can also be left in the bag they were purchased in. Just make sure the bag is tightly sealed to prevent air from getting inside.
Storage of ground coffee
Ground coffee is best stored in a stainless-steel container or in an airtight container in a dark, dry place at room temperature for about 2 weeks.