How Long Does Brewed Coffee Last?

logo by Editorial Staff | Updated on August 3rd, 2022

Coffee is a brewed beverage made from roasted coffee beans, grains, and berries from several Coffee varietals. The grains are separated from the coffee to generate a robust, thick product: unroasted green coffee.

The grains are next burnt, which transforms them into a usable product: roasted coffee, which is ground into a powder and often soaked in hot water before being filtered out, yielding a cup of coffee.

person holding black mug filled with black liquid

Coffee is the most popular beverage in the United States and many other nations worldwide.

Coffee and coffee-based beverages come in a variety of flavors and intensities. In addition to giving its trademark energy boost, coffee is high in antioxidants, which may enhance health.

If you consume or brew coffee, you may be wondering how long it will last once you buy it. 

Unfortunately, scientific studies and food safety recommendations for optimal coffee preservation are scarce. More study is needed on coffee preservation and safety.

Coffee shelf life guidelines in general

Whole coffee beans and even ground coffee may be kept correctly for a long period. Because coffee is dry, the varieties you buy for household consumption are less prone to develop mold or other types of spoilage caused by moisture. However, the shelf life of coffee varies depending on how it is prepared.

Coffee that hasn’t been brewed generally lasts longer than making coffee. It also matters where you keep your coffee, whether on the counter or in the pantry, fridge, or freezer.

Coffee’s freshness and taste might decrease if not maintained in a sealed, airtight container. Cold temperatures in the refrigerator or freezer might impact the flavor of dry coffee, but they can also keep coffee fresher for longer.

Learn About the Chemistry of Coffee Oxidation

Roasted coffee beans oxidize when exposed to air. This is essentially what happens to apples when you slice them open and leave them for a bit.

Although oxidation is not visible to the naked eye, it profoundly influences the taste of coffee beans. This is due to oxidation, which causes taste chemicals in coffee to degrade and be released into the air upon contact.

Espresso and freshly brewed coffee

Several factors influence how long brewed coffee lasts. Some of these are the temperature, the time it is exposed to air, and, most importantly, how it is stored. The taste lasts about 30 minutes.

Many people feel that brewed coffee is best when consumed within 20–30 minutes in an open cup or within an hour in a sealed container.

You can, however, consume coffee several hours after it has been made. Brewed coffee without milk or creamer, such as a pot of black coffee on the stove, is likely safe to drink for up to 4 hours. On the other hand, coffee with milk should be drunk within a couple of hours.

Brew coffee may last longer if stored in a sealed container in the refrigerator. When kept in this manner, it is likely safe to ingest for up to 3–4 days. However, it is unlikely to taste particularly delicious.

What Factors Cause Coffee Bean Degradation?

Darkness and low temperatures are coffee’s closest friends. Therefore there are a few things to avoid while keeping coffee. Beans that are improperly preserved lose their freshness and flavor rapidly. Here are four of coffee’s most vexing foes:


Stale coffee beans are caused by oxygen. Coffee beans and oxygen do not mix well, and when exposed to open air, the beans decay in a matter of days.


Glass jars allow light in, and roasted coffee beans deteriorate when stored in direct sunlight.


Coffee beans deteriorate when exposed to humid environments. Roasted coffee beans should be stored in a cool, dry area.


Heat It does not like heat until it is being brewed. The beans will lose taste if exposed to heat.

How to Store Coffee Beans Correctly

Are you storing coffee correctly? Now that we’ve covered what causes coffee beans to decay, let’s look at how to store coffee properly.

  1. Properly seal your coffee: Coffee should always be stored in an airtight container. It is best to use an opaque container so that no light may enter. Store the container in a cool, dark place.
  2. Buy only what you need: Don’t buy more coffee than you need. Purchasing too much might result in waste, as freshness only lasts three to four weeks.
  3. Maintain a low level of heat and humidity: Coffee is best stored in a cupboard rather than on a countertop since cabinets are normally lower in temperature.

Questions and Answers

How long should coffee beans be stored for the greatest flavor?

For the finest flavor, utilize the beans as soon as possible after roasting, ideally within 2 to 3 weeks for a pound of coffee.

How long should brewed coffee be stored for the greatest flavor?

No matter how you prepare your coffee, consume it as soon as possible for the greatest flavor. The only exception would be cold brew.

How Long Can Brewed Coffee Be Stored in the Fridge?

Brew coffee may be stored in the fridge for up to a week, but it will not taste or smell as pleasant as a newly prepared cup. Cover your cup or carafe to prevent your drink from acquiring the odors and aromas of other foods or beverages inside the refrigerator.

What Are the Causes of Bad Coffee?

Moisture and heat can create difficulties in addition to the coffee being tainted by bugs (or rodents).

Mold may grow in coffee, just like it can in other foods if it is exposed to moisture and remains moist. Mold will develop quicker if heat is applied.


Brewed coffee loses its freshness quickly, and it should be drunk within 15-20 minutes for the greatest flavor. However, it may be securely stored at room temperature for about 24 hours and in the fridge for about 3-4 days, provided no other flavorings or dairy products are added. Coffee with milk or sugar should not be left at room temperature for more than an hour, but it can be kept in the fridge for up to 48 hours.


Editorial Staff

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