How long does cold brew coffee last?

In this brief guide, we are going to answer the question “How long does cold brew coffee last” with an in-depth analysis of the life span of cold brew coffee in different scenarios. Moreover, we are going to discuss the effect of the oxidation reactions taking place in coffee, how to make cold brew coffee, and its caffeine content.

So the summertime is in full bloom and what can be a better drink than the cold brew coffee at this time. At the point when you make it at home, it is ideal to make greater bunches. All things considered, you don’t utilize your coffee maker to simply make one mug of coffee, right? But wait! You are left with a great volume of cold-brewed coffee and you are confused whether or not this brewed iced coffee will go bad. You need not worry as we are here to guide you about “How long does cold brew coffee last”. 

So without much ado, let’s dive in and figure out more about it.

How long does cold brew coffee last in the fridge?

If the cold brew coffee does not have any additional milk or cream topping then it can last approximately one week in your fridge without going bad as it is only a mixture of water, sugar, and ground coffee and these things do not go bad that quickly. 

One more thing to consider is to always use an airtight container or bottle to store the coffee so that it will not pick the smell of other foods placed in your fridge as no one will ever want to consume melon scented cold brew coffee, right?

How long does cold brew coffee last at room temperature?

The cold brew coffee will not taste the same if you drink it after putting it for more than a day out at room temperature. Another thing to consider is that the cold brew coffee should be kept in airtight thermos or container or else the oxidation reaction would make it stale which continues even after the coffee is brewed. 

The chemistry of coffee oxidation

When the coffee beans come in contact with the air they are oxidized and same is the case for the cold brew coffee that is left in open for some time. This oxidation reaction significantly affects the aroma and the flavour of the coffee with no significant change in the colour of the coffee. 

Brewing coffee itself is the oxidation reaction. At the point when the coffee beans come into contact with water, they will start delivering their aromatics, oils, and acids into the water giving you an enriched and flavourful coffee but if the process of oxidation continues even after that it will result in a really sharp and bitter flavour and that is not something we want.

Why does coffee turn bitter?

At the point when you leave your cold brew coffee to sit for a really long time, the reaction among hydrogen and oxygen will raise its pH level, making it taste bitter or stale. therefore you should never let your cold brew sit for too long in the open.

Stale grounds make for stale coffee

The older your coffee beans are, the more are they subjected to the oxidation and the less is their shelf life. Thus you won’t be able to get that characteristic coffee aroma and flavour with old coffee grounds.

How to make cold brew coffee?

Brewed iced coffee is made by soaking coffee in 40 degrees hot, filtered water and afterwards placing it for approximately 24 hours in the refrigerator. After the completion of 24 hours, you sift it through, and voila! you have your freshly made brewed iced coffee.

One thing to keep in mind while making cold brew coffee is that the longer you let the coffee beans sit with water, the more enriched the flavour of your cold brew coffee.

But if you do not want to do any additional labour in making brewed iced coffee then we recommend you to use a good coffee maker to get your cold coffee with a touch of a finger.

What is the caffeine content of cold brew coffee?

The cold brew coffee has less amount of caffeine as compared to the hot coffee. The simple stats are the hotter the water is, the more is the caffeine content it has and as the iced coffee is not made from really hot or boiling water therefore its caffeine content is less. 

Conclusion

In this brief guide, we answered the question “How long does cold brew coffee last” with an in-depth analysis of the life span of cold brew coffee in different scenarios. Moreover, we also discussed the effect of the oxidation reactions taking place in coffee, how to make cold brew coffee, and its caffeine content.

Citations

Mahnoor Asghar is a Clinical Nutritionist with a bachelor's degree in Nutrition and Dietetics. She is compassionate and dedicated to playing her part in the well-being of the masses. She wants to play a fruitful role in creating nutrition and health-related awareness among the general public. Additionally, she has a keen eye for detail and loves to create content related to food, nutrition, health, and wellness.

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