The cold brew recipe we're sharing isn't just convenient — it'll also win you over with its shelf life. You probably already know that classic cold brew is meant to be consumed right away, because it goes off quickly. With "our" method, you can make a cold coffee that still tastes great a week later.
Traditional Maceration: The Short-Lived Classic
The most common cold brew method is steeping. You pour cold water over ground coffee and leave it in the fridge for up to 24 hours. The result is rich and flavorful — but it comes with a few catches.
First, there's the hygiene issue. Because the coffee never goes through heat, bacteria get the upper hand. Steeped cold brew is essentially "on its way out" within just 2 days. If you don't drink it immediately, it starts to oxidize and the flavor drops off sharply. On top of that, this method is logistically messier — the more containers you move the coffee through during filtering, the higher the risk of contamination. Every vessel needs to be thoroughly cleaned.
Which brings us to another problem: steeped cold brew is a pain to filter. Even if you're using a French press, fine particles will still end up in your cup. To get it looking halfway decent, you'll need to run it through a paper filter multiple times — which keeps clogging up because of the sediment. It's tedious, and it only adds to the bacterial risk.
Cold Brew Using the Flash-Chill Method
At Fiftybeans, we take a different approach. Our go-to method for making cold coffee is flash chilling. The concept is simple: you brew the coffee hot (just like a regular filter coffee), which naturally "pasteurizes" it — and then you chill it down fast.
Thanks to the thermal shock and the elimination of bacteria, your cold brew will keep in the fridge for up to 7 days. You also skip the whole tedious filtering process, because the coffee is essentially ready to go from the moment it's brewed.
Cold Brew Recipes
1. How to Flash-Chill Filter Coffee
- Brew your favorite filter coffee hot, as usual.
- Cool the freshly brewed hot coffee down. The easiest way is to pour it into a pre-chilled container.
- Wait until the temperature drops below 50°C (the coffee will stop steaming).
- Put it in the fridge.
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Pro Tip: Whatever you do, don’t pour ice directly into the hot coffee—it will just water it down. Save the ice for the final serving glass.
2. How to Prepare Macerated Cold Brew
- Grind your beans coarsely so the extraction goes smoothly.
- Pour room-temperature water over the grounds.
- Place it in the fridge.
- Steep for anywhere between 16 and 24 hours. To find your sweet spot, we'd simply recommend experimenting — the longer the steep, the stronger and more aromatic the result.
- Filter the cold brew patiently. Even if you use a French press, we recommend pouring the result through a paper filter as well to get rid of the sediment that speeds up spoilage.
Regardless of the method you choose, always remember to cover your coffee with a lid or cling film while it’s in the fridge.
Fiftybeans Tip: If you want a coffee that still has a "kick" five days after brewing, flash-chilled Cold Brew is the logical choice. Give it a try—we bet you’ll never go back to waiting 24 hours for a cold steep again.
Running low on whole beans? Browse our specialty coffee selection. We're Fiftybeans, a Brno-based roastery — and we roast with obsessive attention to detail.