Showing posts with label iced coffee. Show all posts
Showing posts with label iced coffee. Show all posts

Friday, October 31, 2025

What Does Coffee Brewed with Coconut Water Taste Like?

 The world of coffee never lacks innovation. We’re constantly seeing new and creative combinations made from familiar ingredients. Take coffee and coconut, for instance — this pairing alone can produce countless variations: coconut water + espresso becomes a refreshing coconut Americano; thick coconut milk + espresso makes a creamy coconut latte; and coconut + cold brew creates a tropical iced drink. All of these drinks take simple ingredients and layer them into something new and interesting.

But just yesterday, I stumbled upon another “experimental” crossover — brewing coffee with coconut water. And no, I don’t mean adding coconut water to already brewed coffee, nor using it to mix with instant or freeze-dried coffee. I mean replacing regular brewing water entirely with coconut water when making pour-over coffee.

At first, I frowned at the idea — it sounded a little crazy. But then I thought, if we can boil chicken in coconut water for soup, why not brew coffee with it? Plus, some experienced coffee lovers have given it surprisingly positive reviews. So today, I decided to test it myself.



Preparing the Ingredients

A cup of pour-over coffee is over 98% water, so the water you use plays a major role in determining its final flavor. The same goes for coconut water. I chose fresh young coconuts because their juice is abundant and naturally rich in amino acids, vitamins, and minerals — not to mention it has a sweet, fragrant aroma. Of course, if you want convenience, boxed coconut water will do just fine.

Since coconut water has a distinct sweetness and aroma, I think it pairs best with beans that aren’t roasted too dark or too light. Dark roasts would overpower the delicate coconut notes, while very light roasts tend to be too acidic and may clash with the coconut flavor.

From my bean collection, options like Sidamo Alo, Flower Queen, Strawberry Candy, Tarrazu, Diamond Mountain (Finca Esmeralda), or Geisha Village Chaka all fit the bill. For today’s test, I went with Sidamo Alo — a naturally processed, medium-light roast known for its notes of magnolia, mango, orange, and strawberry.

Ingredients:

  • 3 fresh coconuts

  • A heat source

  • 15g Sidamo Alo coffee beans

From past experience, if you want the fruitiness and coffee flavors to balance, you have to control the brew strength. Too concentrated, and the coffee overwhelms the coconut. So I set the coffee-to-water ratio to 1:16 and divided the total water volume into four pours to optimize flavor extraction.

Brew parameters:

  • Coffee: 15g

  • Ratio: 1:16

  • Water temperature: 91–92°C (195–198°F)

  • Grind size: EK43s – 10 clicks / C40 – 24 clicks (≈80% passing through a 20-mesh sieve)

  • Dripper: V60

  • Pouring method: four stages



Brewing Steps

  1. Open the coconuts and pour all the juice into a kettle. Heat until just below boiling, then let it cool to 91–92°C.

  2. Grind 15g of coffee to a fine sugar-like texture and pour it into a pre-wet filter, flattening the surface gently.

  • Bloom: Start with a 30g circular pour and let it bloom for 30 seconds. A faint coconut aroma will rise.

  • Second pour: Add 90g of hot coconut water in a larger circular motion, reaching 120g total on the scale.

  • Once the coconut water almost drains and the coffee bed is visible (around 55 seconds to 1:05), do the third pour with 60g using a gentle, smaller pour.

  • After that drains, finish with a final 60g pour directly in the center. The total brew time should be around 2 minutes and 10 seconds.

The coffee brewed with coconut water looked slightly cloudy. The aroma was a mix of coconut sugar and roasted coffee. The first sip didn’t taste like coffee at all — more like warm coconut broth with a hint of saltiness, likely from the minerals reacting to heat. After a few sips, the Sidamo Alo notes began to appear: orange, pineapple, peach — but all faint, blurred by the dominant coconut flavor. The result? A cup that tastes more like “coconut-flavored coffee” than coffee with a coconut twist.



Iced Coconut Water Pour-Over

Since I was already at it, I decided to try an iced version too. The parameters were similar to my usual café setup:

Ingredients:

  • 15g Sidamo Alo coffee beans

  • Ratio: 1:10

  • 75g ice cubes

  • Water temperature: 91–92°C (195–198°F)

  • Grind size: EK43s – 9.5 clicks / C40 – 22 clicks (≈82% passing through a 20-mesh sieve)

  • Dripper: V60

  • Pouring method: three stages

Steps:

  1. Put 75g of ice into the server.

  2. Add the ground coffee to the filter.

  3. Pour 30g of coconut water in small circles to bloom for 30 seconds.

  4. Add 60g more using the same gentle motion — don’t pour too hard or you’ll break the coffee bed.

  5. When the coffee almost finishes dripping, pour the remaining 60g of coconut water. Aim for a total brew time of about 1:50–2:00 minutes.

To be honest, the iced version didn’t have any significant flavor advantage either. It tasted mostly of young coconut, citrus sweetness, and a slight black-tea-like note. But thanks to the ice, it was crisp and refreshing — perfect for warm weather, like here in southern China where people are still wearing short sleeves.



Final Thoughts

After two rounds of testing, I’d say brewing coffee with coconut water is a fun experiment, but not something I’d make a habit of. The flavor is interesting but far from balanced. If you’re chasing novelty, it’s worth trying once or twice. But if you’re after pure coffee flavor, it’s really not worth buying coconuts or heating coconut water just to make pour-over coffee — especially since it doesn’t yield great results and cleaning your kettle afterward is a real pain.

Wednesday, October 29, 2025

Is Cold Brew Made with Warm Water Any Good?

 Most people think cold brew coffee must be made slowly with cold water — but what if a little warmth could unlock new layers of flavor? In this post, we explore the science and art of brewing cold brew with warm water. You’ll learn how temperature changes affect extraction, what flavors to expect, and how to try this quick yet refined method at home. Think of it as the middle ground between the patience of cold brew and the intensity of hot brewing — a balanced cup born from gentle warmth and slow craftsmanship.

Is Cold Brew Made with Warm Water Any Good?

As one of the most popular types of iced coffee, cold brew is typically made using room-temperature water (around 20–30°C / 68–86°F). Because the extraction efficiency is relatively low, the coffee needs to steep for a long time to fully draw out its flavors, emphasizing sweetness and body.

Anyone who’s made cold brew before knows the process takes time — anywhere from 5–6 hours to nearly an entire day. Compared to other brewing methods, cold brew is clearly a “slow craft.” Because of that, some people have suggested using warm water instead to shorten the steeping time.

Out of curiosity, I looked into it and found that brewing cold brew with warm water isn’t exactly new. Many coffee enthusiasts have tried it before and even reported that it enhances sweetness. So today, let’s explore whether that really works.


Cold Water vs. Warm Water Brewing

In essence, compared with high-temperature extraction, the long, cool immersion of cold brew allows more of the coffee’s smaller sweet and acidic compounds to dissolve, while the low temperature suppresses the release of bitter compounds — especially when brewed and stored in the fridge. This results in a smoother, cleaner cup.

A study jointly published by the Coffee Science Foundation and the Specialty Coffee Association found that coffee extracted at lower temperatures tends to have more floral and fruity notes, with less bitterness, acidity, and off-flavors.

For the same coffee bean — using identical ratios, grind size, and coffee weight — the rate at which compounds dissolve in hot vs. cold water varies significantly. According to the data, flavor characteristics change noticeably with extraction temperature. Among four key attributes — bitterness, acidity, rubbery flavor, and floral aroma — the first three are higher in hot extractions, while floral notes are more pronounced in cold brews.

During high-temperature brewing, tannins break down into gallic acid, and more fatty acids dissolve, leading to stronger bitterness and acidity. In contrast, under low-temperature extraction, as steeping time increases, acidic compounds gradually decrease. That’s why cold brew has much lower acidity and bitterness. The chilled environment also helps trap more aromatic compounds, “locking in” the coffee’s fragrance.

When using warm water (somewhere between cold and hot), the added heat boosts molecular movement and allows small flavor compounds to release more quickly. As the water cools, the temperature drop prevents coffee particles from clumping and promotes even extraction, while still limiting bitterness.



How to Brew Warm-Water Cold Brew

For this experiment, I used Elida Catuai, a Panamanian coffee processed with anaerobic natural fermentation. It features soft floral aromas with notes of sweet orange and plum jam — a bright and delicate profile perfect for both pour-over and cold brew.

Since higher temperatures increase the risk of over-extraction from fine particles, I adjusted the grind slightly coarser for better balance.

Brew parameters:

  • Coffee: 30g

  • Grind: EK43s – 10 clicks (75% passing through a 20-mesh sieve, or Comandante C40 – 26 clicks)

  • Coffee-to-water ratio: 1:11

  • Water temperature: 45°C (113°F)

Steps:

  1. Add the ground Elida coffee to a clean container.

  2. Pour in 330ml of water at 45°C and stir thoroughly.

  3. Once the coffee cools to around 35–40°C, seal it and place it in the fridge.

  4. After about 3 hours, stir again and filter out the grounds.

For comparison, I also made a standard cold brew using room-temperature water with these parameters:

  • 30g coffee, grind size EK43s – 10 clicks, 1:11 ratio, steeped for 7 hours.

The room-temperature cold brew had delicate floral, pineapple, and orange notes, with a light black-tea sweetness and slight fermentation — nicely balanced overall.

The warm-water brew (40°C for 3 hours), on the other hand, had elegant bergamot and jam aromas with brown sugar and peach sweetness. However, the flavors felt a bit underdeveloped with a short finish — likely due to incomplete extraction.

So, I sealed it again and refrigerated it for another 3 hours. As expected, the cup became much fuller and rounder, with a richer aroma and smoother taste.


A Few Takeaways

  1. I also tested a few other beans and found that light to medium roasts with fruity or sweet profiles work best with this warm-water cold brew method — for example, natural-processed ALO or honey-processed Strawberry Candy.

  2. If you don’t have a thermometer, don’t worry — “warm water” simply means water close to body temperature. As long as it feels gently warm to your hands, it’s perfect.