Why Is My Cold Brew Acidic? (Explained)

11 Min Read
Why Is My Cold Brew Acidic?

Cold brew coffee has become increasingly popular in recent years, due in part to its lower acidity level.

However, it is important to note that the extraction process of cold brew coffee can release some of the traditionally nuanced high notes, which may make the flavor taste more acidic. 

Additionally, the beans being a lighter roast can also make it more “acidic” tasting. Lastly, coffees from a higher elevation (i.e. Ethiopian coffees) are also typically more acidic in taste.

All of these factors should be taken into consideration when determining whether or not cold brew coffee is the right choice for you.


The roast you use for your cold brew coffee can have an impact on the final taste of the beverage. Lighter roasts tend to be more acidic, while darker roasts have a less acidic taste.

This is due to the way that the flavor develops in the beans. Darker roasts allow for a fuller bodied taste, which balances out the acidity. 

When brewing cold brew coffee, it is best to use a dark roast in order to achieve the desired flavor profile. mind you, it’s just the taste. This doesn’t mean there is actually less acid in the beans. 

A darker roast allows the flavor in the beans to develop a little more. This fuller bodied taste is what balances out the flavor.

A lighter roast leaves the way open for a more open, brighter taste. However, for cold brew a dark roast is better.

What’s the difference between cold brew and iced coffee?

While all the answers below are basically correct, better is a matter of opinion. Cold brew definitely is less bitter than iced coffee, and I cold brew also uses about 2xs the beans, so it cost double (if you brew at home). 

I drink coffee black, but if you like it sweetened, it is easier to add to hot brew, then pour over ice if you like it cold.

You can heat cold brew and it will be less bitter than percolated coffee, but it isn’t worth the time and planning involved for me. When I want a cup of coffee, standard percolated is 5 minutes away. Cold brew takes 8-12 hours.

How do I make my cold brew less acidic?

If you’re looking to improve the acidity in your cold brew, there are a few key things you can do.

Use fresh beans  

First,Make sure you’re using fresh, whole beans that have been roasted to a very dark level. This will give the coffee a fuller body that will help to balance out the acidity. 

Grind slightly finer

Next, grind the beans slightly finer than you would for other brewing methods. This will create more surface area on the beans, allowing the water to extract more of the coffee’s flavors and aromas. 

Let you cold brew steep for longer

Finally, allow your cold brew to steep for a longer period of time – up to 24 hours – and do so at a slightly higher temperature. This will speed up the extraction process and result in a more acidic cup of coffee.

Let it steep outside the fridge 

Steep the coffee outside of the fridge in an area that is not near any heat sources.

Make smaller batches

Make smaller batches and only brew what you will drink within a day or two.  

By following these tips, you can easily improve the acidity levels in your cold brew and create a cup that is more to your taste.

Are we getting less acid when we drink cold brew coffee rather than hot coffee?

In fact, it is believed that cold brew coffee is almost 67% less acidic than hot-brewed coffee. For people who are sensitive to acidity, cold brew coffee may be a more enjoyable option.

Does cold brew coffee increase its acidity when heated up?

No, heating up cold brew coffee does not increase its acidity. The coffee is already brewed, so its characteristics will not change when heated up. This means that it will still be low-acidity coffee.

I actually enjoy heating up my cold brew coffee, as it makes for a wonderfully smooth and rich cup of hot coffee. Plus, it’s a great way to enjoy your cold brew coffee on a cold day.

Why do so many places and people that offer cold brew coffee brew it so so strongly?

Why do so many places and people that offer cold brew coffee brew it so strongly? One reason may be that they’re allowing for ice and/or milk.

That’s why I do it. Cold things don’t taste as strongly as warm things, to begin with, and once you’ve added ice and agitated, your iced coffee can become a bit weak.

Coffee doesn’t need to taste like a punch in the face. If it’s too strong, add a little water. Don’t let anyone tell you how to drink your own beverage.

The same goes for whiskey,the right way is the way that feels good. So if you prefer your cold brew coffee a little weaker, don’t be afraid to water it down to suit your taste.

Why does cold brew coffee have a slightly sour taste?

Cold brew coffee has a slightly sour taste because of the grind size and time it is steeped. A finer grind size will result in a more sour taste because there are more surface area of the coffee beans exposed to water. 

If cold brew coffee is steeped for too long, it will also become more sour because of the release of unwanted flavors.

To avoid a sour taste, use a medium grind size and do not steep for more than 24 hours. Cold brew coffee that is properly made should have a delicate sweet taste because the acidity is lower than in hot brewed coffee. 

Friends who drink cold brew coffee that is properly made may not need to add sugar because it is already smooth and lacks the acidic sourness.

2 Best Cold Brew Coffee Makers 

If you want to fix the cold brew acidic try these products.

Primula Burke Deluxe Cold Brew Iced Coffee Maker:

The Primula Burke Deluxe Cold Brew Iced Coffee Maker is a great way to make cold brew coffee or tea. The unique cold brew extraction process produces flavorful, full bodied cold brew coffee and tea. 

The streamlined design makes it easy to use and the dishwasher safe, removable filter makes cleanup a breeze.

The durable glass construction and compact size make it a great addition to any kitchen. 

It also fits most refrigerator doors or shelves and makes up to 6 cups (52 ounces) of smooth, delicious cold brew coffee.

Takeya Patented Deluxe Cold Brew Coffee Maker

I personally use the Takeya Patented Deluxe Cold Brew Coffee Maker, and I can say from experience that it’s an excellent product. It’s made from durable BPA-free Tritan, and has an airtight lid and non-slip silicone handle. 

It produces four servings of smooth cold brew with any type of coffee grounds, and is less acidic than traditional coffee brewing.

The two-quart size is perfect for a small gathering, and the black color is sleek and stylish. I would highly recommend this coffee maker to anyone looking for a quality cold brew option.

Does adding salt to coffee reduce acidity?

People often add salt to coffee in order to reduce the coffee’s acidity. This technique can be effective in mellowing out coffee that is too acidic. Additionally, it may help to reduce acid reflux for some people. 

However, it is important to note that adding salt to coffee may also change the coffee’s flavor. As a result, it is important to experiment with different amounts of salt in order to find the right balance for your taste.

What is the least acidic way to brew coffee?

The cold brew process is the least acidic way to brew coffee. This is because the coffee beans are never exposed to hot water, which can extract acidity from the beans.

Instead, the beans are soaked in cold water for a prolonged period of time, typically 12 hours or more. 

This results in a coffee that is 70 percent lower in acidity than coffee brewed with hot water.

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