提高冰咖啡萃取率的5個關鍵技巧 5 Key Techniques to Improve Iced Coffee Extraction Rate
目錄：
1. 調節研磨粗細
2. 增加水溫
3. 延長浸泡時間
4. 調整注水方式
5. 增加咖啡粉量
夏天炎熱的氣候讓人們對冰涼的飲品產生強烈需求，而冰咖啡成為許多咖啡愛好者的首選。手沖冰咖啡不僅能夠滿足對清涼感的需求，還能呈現咖啡的豐富風味。相比傳統熱咖啡，冰咖啡在製作過程中對萃取技術有更高要求。如何在保持清涼口感的同時，又能確保咖啡風味的完整性，這是每一位咖啡愛好者在夏天手沖冰咖啡時需要面對的挑戰。隨著溫度的改變和水與咖啡粉接觸的時間縮短，冰咖啡的萃取率容易受到影響，因此調整沖煮參數變得尤為重要。本文將探討五種提升冰咖啡萃取率的方法，讓你在夏天也能沖泡出一杯風味濃郁、口感平衡的冰咖啡。
The scorching summer heat drives a strong demand for refreshing drinks, with iced coffee becoming a top choice for many coffee enthusiasts. Pour-over iced coffee not only satisfies the need for a cool, refreshing beverage but also showcases the rich flavors of coffee. Compared to traditional hot coffee, iced coffee requires more precise extraction techniques during its preparation. How to maintain the cooling sensation while ensuring the integrity of the coffee’s flavor is a challenge every coffee lover faces when brewing iced coffee during the summer. As temperature changes and the contact time between water and coffee grounds decreases, the extraction rate of iced coffee can be affected, making it essential to adjust brewing parameters. This article will explore five ways to improve the extraction rate of iced coffee, ensuring you brew a cup that is rich in flavor and perfectly balanced, even in the summer.
1. 調節研磨粗細
研磨的粗細直接影響萃取率。冰咖啡通常使用較細的研磨度以增加接觸表面積，從而提高萃取率。你可以嘗試將咖啡豆磨得稍微細一些，但不要太細，以避免過度萃取而導致苦味。
1. Adjust the Grind Size
The grind size directly impacts the extraction rate. Iced coffee typically uses a finer grind to increase the surface area for better extraction. You can experiment with slightly finer grounds, but avoid making it too fine to prevent over-extraction and bitterness.
2. 增加水溫
手沖冰咖啡雖然使用冰塊冷卻，但可以通過使用稍高的水溫(如90°C~95°C)來增強萃取。較高的水溫有助於更有效地溶解咖啡中的可溶性物質，提升風味豐富度和萃取率。
2. Increase Water Temperature
While pour-over iced coffee is cooled with ice, using a higher water temperature (around 90°C to 95°C) can enhance extraction. Higher temperatures help dissolve more soluble compounds in the coffee, improving flavor richness and extraction rate.
3. 延長浸泡時間
為了提高萃取率，可以適當延長咖啡粉與水的接觸時間。你可以通過調整手沖的速度，讓水與咖啡粉接觸更久，但要避免時間過長，以免出現過度萃取。
3. Extend Brew Time
To increase the extraction rate, you can lengthen the contact time between the coffee grounds and water. Adjust the pour-over speed to allow the water to stay in contact with the grounds longer, but be cautious not to extend it too much to avoid over-extraction.
4. 調整注水方式
採用分段注水或較慢的注水方式，可以讓咖啡粉與水有更長的接觸時間，增加萃取率。每一段注水不用太多，這樣可以有效多分幾段注水，但每一段注水的咖啡粉不宜流乾後才注水、要保留些許水份，然後慢慢注入少量熱水。
4. Adjust Pouring Technique
Using a segmented or slower pouring method can allow the coffee grounds to interact with water for a longer time, boosting extraction. Each pour should not add too much water at once. Instead, divide it into more segments and ensure the grounds retain some moisture before adding the next round of hot water.
5. 增加咖啡粉量
提高咖啡粉的用量雖然不是增加萃取率的方式，但可有效的增加冰咖啡的濃郁度，即咖啡粉與熱水的比例從1:15調整為1:10，即注入熱水量相同下，原本用20克咖啡粉沖泡冰咖啡、可改用30克咖啡粉來沖泡冰咖啡，帶來更濃郁的風味。這需要根據個人口味進行調整，以找到最佳的平衡。
5. Increase Coffee Grounds Quantity
While increasing the amount of coffee grounds doesn’t directly boost extraction rate, it can intensify the flavor of iced coffee. Adjust the coffee-to-water ratio from 1:15 to 1:10. For example, instead of using 20g of coffee for your iced coffee, use 30g while keeping the water amount the same. This results in a richer flavor. Be sure to tweak this according to your personal taste to find the ideal balance.
夏天製作冰咖啡時，如何提高萃取率是一個需要技巧與經驗的過程。通過調整研磨粗細、水溫、浸泡時間、注水方式與咖啡粉量，咖啡愛好者可以精確控制萃取過程，從而避免過度或不足的萃取，提高咖啡風味層次。冰咖啡的製作不僅僅是為了降溫，還是一種讓人感受到咖啡原豆特質的方式。每一杯冰咖啡，都能因為精心設計的沖煮方法而展現出獨特的風味與口感，讓人在炎炎夏日中享受咖啡的香氣與冰涼的愉悅感。藉由這些方法，你可以在家裡輕鬆製作出專業水準的冰咖啡，為夏天的咖啡體驗增添一絲奢華感。
Improving the extraction rate when making iced coffee in the summer is a process that requires skill and experience. By adjusting grind size, water temperature, brew time, pouring technique, and coffee grounds quantity, coffee lovers can precisely control the extraction process to avoid under- or over-extraction, enhancing the complexity of the coffee’s flavors. Iced coffee is not just a way to cool down, but also a method to experience the unique characteristics of the coffee beans. Each cup of iced coffee can reveal distinct flavors and textures thanks to carefully designed brewing techniques, allowing you to enjoy the aroma and refreshing pleasure of coffee in the heat of summer. With these methods, you can effortlessly brew professional-quality iced coffee at home, adding a touch of luxury to your summer coffee experience.
│延伸閱讀: 冰咖啡種類一次搞懂
│Further reading: Understanding the Different Types of Iced Coffee
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