Extraction is at the heart of every coffee-making method. You combine ground coffee with water, and just like that, you have a flavorful brew. But extraction isn’t always simple—or fast. This is why many believe that “quick cold brew” is a myth.
Depending on the method, the process can take anywhere from seconds to days. While there’s value in taking the time to craft the perfect cup, I’m not one for waiting around—especially not 12 hours for a single drink! That’s where science comes in, helping me create a quick cold brew in a fraction of the usual time.
Speedy Extraction: Unlocking Espresso in Seconds
The secret to pulling espresso in just seconds lies in controlling pressure. But how can you achieve that? For me, it’s all about one essential tool in the kitchen: the chamber vacuum machine.
What Exactly Does a Chamber Vacuum Machine Do?
While it’s known for sealing bags, the chamber vacuum machine has far more tricks up its sleeve—especially for those of us who can’t wait for coffee. Here’s why it’s a game-changer:
- It drastically reduces pressure, then returns to normal atmospheric levels.
- It forces liquid into a porous solid, then pulls it back out.
Still wondering how this relates to coffee extraction? Let’s dive into that next.
How to Make Quick Cold Brew in Simple Steps
Now let’s dive into the method for creating a fast, flavorful cold brew coffee. It might sound a bit technical, but the process is surprisingly straightforward.
Step 1: Grab a container (anything that fits in your vacuum machine) and add your coffee grounds. I prefer a fine grind, using a 1:9 coffee-to-water ratio.
Step 2: Pour in the water. You can use water at any temperature, though I often opt for room temperature for convenience.
Step 3: Cover the container with cling wrap to avoid spills. Avoid using a hard lid since you need something flexible that will stretch during the vacuum process.
Step 4: Set up your vacuum machine. For a rich, syrupy cold brew, I set mine to 60 seconds; for a lighter, cleaner taste, 35 seconds does the trick. Keep in mind, machine settings may vary, so adjust according to your equipment.
Step 5: Close the lid and let the vacuum work its magic. For the first 15 seconds, you might not see much happening, but soon the liquid will start to bubble as the pressure drops, making room temperature water “boil.”
Step 6: After the vacuum decompresses with a satisfying “psssschhhttt!” the extraction is complete. This quick cold brew method rapidly removes the air from the liquid, accelerating the process.
Step 7: Remove the cling wrap and strain the coffee. For a smoother finish, pass it through a Chemex or V60 filter if you prefer a sediment-free brew. Now you’re ready to savor your quick cold brew—perfectly refreshing in a fraction of the time!
For the Home Barista
While chamber vacuums are undeniably impressive, they can be quite costly. But don’t worry, you can achieve the same results with a simple household vacuum! All you need is one of those travel vacuum bags with one-way valves—the kind used to compress clothes for packing. It’s a budget-friendly alternative that works wonders for making quick cold brew at home.
Beyond Coffee
While coffee is the star of the show, vacuum infusion opens up endless possibilities. You can use this technique with any porous solid and any liquid. At my bar, we create a vibrant strawberry syrup with all the fresh acidity of the fruit intact (since no heat is involved), and we also infuse white rum with dried oranges and sweet spices to make a delightful spiced rum—all in under a minute. The magic of vacuum infusion can transform your quick cold brew into something truly special, but it doesn’t stop there.
Is It Too Good to Be True?
What makes vacuum infusion so remarkable? It speeds up the process without sacrificing the flavors of your brew. Unlike the nitro method, which often imparts a metallic taste, vacuum extraction preserves the pure, natural flavors and aromas of your quick cold brew. The result is a clean, flavorful coffee in record time.
It’s simple, fast, and yields a delicious cup. What more could a coffee lover ask for?
Coming Next Week Tune in next time to discover how to filter coffee to crystal clarity—without using any filter paper!