“Can You Reuse Cold Brew Grounds? Discover the Surprising Ways to Extend Their Flavor and Save Money!”

By bobbreich@gmail.com •  Updated: 11/22/23 •  4 min read

Can You Reuse Cold Brew Grounds? Discover the Surprising Ways to Extend Their Flavor and Save Money!


Cold brew coffee has gained immense popularity in recent years. With its smooth and less acidic taste, it has become a favorite among coffee enthusiasts. But what about the grounds used to make cold brew? Can they be reused or are they destined for the trash? In this blog post, we will explore the concept of reusing cold brew grounds and discover some surprising ways to extend their flavor and save money.

Understanding Cold Brew Grounds

Cold brew grounds are the coarsely ground coffee beans used to make cold brew coffee. They differ from regular ground coffee in terms of their size. Due to their coarser texture, they allow for a slower extraction process when brewing, resulting in a smoother and less bitter cup of coffee.

The rich flavor and aroma extracted from these grounds during brewing is what makes cold brew so appealing. As water seeps through the grounds over an extended period, it absorbs more soluble compounds like caffeine, oils, and acids than traditional hot brewing methods.

Can Cold Brew Grounds be Reused?

Contrary to popular belief, cold brew grounds can indeed be reused. Many people mistakenly assume that once the initial brewing is done, there is no further use for these grounds. However, with proper understanding and precautions, you can get more mileage out of your cold brew grounds.

Before reusing cold brew grounds, there are a few factors to consider:

1. Quality: The quality of your initial batch of cold brew will determine how flavorful your reused grounds will be. Using high-quality beans and following proper brewing techniques will ensure better results.

2. Storage: It’s important to store your used cold brew grounds properly after each use. Moisture can cause them to spoil quickly or develop unpleasant odors.

3. Timing: It’s best not to reuse the same batch of grounds more than once. After the first reuse, the flavor and aroma diminish significantly.

Surprising Ways to Reuse Cold Brew Grounds

1. Reusing as a base for iced coffee or iced tea:

Cold brew grounds can be used as a flavorful base for refreshing iced beverages. By adding water or your choice of tea and letting it steep with the used grounds, you can create a unique and refreshing drink. Experiment with different ratios of water to cold brew grounds to achieve your desired taste profile.

2. Incorporating in baking and cooking:

Cold brew grounds can enhance the flavor profile of baked goods like cookies and cakes. The earthy undertones of coffee can bring depth to sweet treats, making them even more delicious. Additionally, they can be incorporated into savory dishes like stews or marinades to add a rich, smoky flavor.

DIY Beauty Treatments with Cold Brew Grounds

Coffee grounds are not just beneficial for our taste buds; they also offer advantages for our skin health. The exfoliating properties of coffee help remove dead skin cells, leaving behind smoother and brighter skin. You can create homemade scrubs, face masks, or even under-eye treatments using cold brew grounds.

Gardening Uses for Cold Brew Grounds

If you have a green thumb, you’ll be pleased to know that cold brew grounds make excellent natural fertilizer for plants. Coffee is rich in nitrogen, potassium, and other nutrients that are beneficial for plant growth. Specific plants like roses, hydrangeas, blueberries, tomatoes, and azaleas thrive when treated with used coffee grounds.

Practical Tips for Storing and Preserving Reused Cold Brew Grounds

To maintain freshness and prevent odors when reusing cold brew grounds:

1. Store them in an airtight container in the refrigerator between uses.
2. Consider freezing excess brewed coffee grounds in ice cube trays.
3. Dry out used coffee grounds before storing them, either by spreading them out on a baking sheet or using a food dehydrator.


In conclusion, cold brew grounds can be reused in various creative ways to extend their flavor and save money. From using them as a base for delicious iced beverages to enhancing baked goods and cooking, their potential goes beyond the initial brewing process. Additionally, they can be repurposed for DIY beauty treatments and provide valuable nutrients to your plants when used in gardening. So next time you make your favorite cold brew, don’t throw away those grounds just yet. Get creative and experiment with the surprising ways to reuse them! By doing so, you’ll not only enjoy an extended coffee experience but also contribute to reducing waste and saving money.