Hot-Blooming Cold Brew
If you’re here at the Seattle Coffee Gear blog we’re betting you know a thing or two about cold brewed coffee. This method of brewing has become incredibly popular over the last decade or so, and with good reason. Cold brewing coffee leads to fantastic extraction of flavor notes by slowly brewing coffee with the simplicity of overnight saturation. Did you know that you can tease even more flavors out of your cold brew with a neat trick? Follow along to find out!
If you’re a pour over drinker you’re familiar with the bloom. This is the part of the pour over process where you add water to your grounds, often around 1:1, to start the extraction and release gas from the grounds. You’ll see the grounds bubble as those gasses are released. This is an important step that is one of the reasons brewing pour over results in more distinct, smooth flavors than an old drip brewer.
Cold brewed coffee already eliminates a lot of the bitterness that can come with coffee by nature of its slow-brew process. To get an even smoother, more complex flavor, you can bloom your cold brew coffee as well!
To do this, you’ll need to heat up some water to brew temp. For the very best flavor, you’ll want filtered water heated to 195-205 degrees fahrenheit. Once you have this water heated, add the hot water to your coffee grounds at a ratio of 1:1. You’ll want to let the coffee bloom for around a minute, which will release those gasses and flavors mentioned above. From there, simply add the rest of your room-temp or cold water and set your cold brew to saturate overnight!
The resulting coffee will be smoother and more flavorful than your typical batch cold brewing. This technique works especially well for naturals and honeys that have a stronger flavor. If you think about this, it makes sense that brews that work best as pour over will also perform better using this method. It should be noted that this method of hot blooming your cold brew can add a very minimal amount of acidity to your coffee, but it’s something most coffee drinkers won’t even notice. It’s just something to keep in mind if you specifically need to keep your acids as low as possible.
In conclusion, Hot blooming your grounds before you set your cold brew to steep can add flavor and depth to your caffeine concentrate. Give it a try and see how you like it, and let us know how it goes!