一杯不會走味的咖啡 A Cup of Coffee That Never Loses Its Flavor
目錄：
1. 咖啡冷掉不走味
2. 咖啡保存得當不走味
3. 善用手沖器具不走味
人若問我不會走味的咖啡是什麼，我和你講就像手沖咖啡，熱的時候風味飽滿香甜，冷的時候甘甜別有一番風味。
If someone were to ask me what a coffee that never loses its flavor is, I would tell them it's like pour-over coffee. When it's hot, it's full-bodied and aromatic, and when it's cold, it has a unique sweetness.
咖啡冷掉不走味
Coffee that Remains Flavorful when Cold
常聽人說，一杯好咖啡的風味會隨著溫度而改變，在高溫及低溫都好喝。如果放冷後感受到苦澀味太重，我們可以知道這杯咖啡的品質堪慮；以前常被教導咖啡要趁熱的時候喝，因為不好的咖啡在冷掉時不好喝；好咖啡會有足夠的甜感支撐，加上愉悅的酸質，在酸甜平衡之下，即使冷掉也可以好好品味咖啡的風味。
It's often said that the flavor of a good coffee changes with temperature, and it tastes great at both high and low temperatures. If a coffee tastes too bitter when cold, it's a sign of poor quality; we've been taught that coffee should be consumed hot because it's not enjoyable when cold. However, good coffee should have enough sweetness to support it, along with pleasant acidity. Even when cooled, it can still be enjoyed under a balanced acidity and sweetness.
也有時候，咖啡熱的時候不太好喝，冷掉反而比較香甜好喝；此時，大概可以判斷咖啡的本質是好的，只是沒有把咖啡沖煮好，或是沒有把咖啡豆烘焙好，讓咖啡在熱的時候放大了烘焙瑕疵，而冷缺後咖啡慢慢回覆本質狀態，喝起來反而比較香甜好喝。
Sometimes, coffee isn't very enjoyable when hot but becomes sweeter and more enjoyable when cooled. At these times, we can probably conclude that the coffee's essence is good, but it wasn't brewed properly, or the coffee beans weren't roasted well, amplifying roasting flaws when hot and gradually returning to their natural state when cooled, resulting in a more pleasant taste.
│延伸閱讀：如何挑選才能買到有甜感的豆子
│Further reading: How to Select Beans to Find Ones with a Sweet Taste?
咖啡保存得當不走味
Proper Coffee Storage Prevents Flavor Loss
咖啡豆保存得當不走味要遠離三種東西：氧氣、濕氣和陽光。JC咖啡豆袋採用食品級內層及可遮蔽光線的多層鋁箔袋，豆袋上附有夾鏈，在使用過後儘量排出袋內多餘空氣並將夾鏈封好，可以有效遠離氧氣與濕氣；同時，豆袋上有「單向排氣閥」讓新鮮烘焙的咖啡釋放二氧化碳自動排出豆袋外，讓過多的氣體只出不進；因此只要將豆袋放置在陰涼乾燥處，就是對咖啡豆最良好的保存方式。
To prevent coffee beans from losing their flavor, they should be kept away from three things: oxygen, moisture, and sunlight. Justin coffee bean bags are made of food-grade materials with multiple layers of aluminum foil to shield from light. The bags are equipped with zip locks, which, when used, expel excess air and seal the bags tightly, effectively keeping out oxygen and moisture. Additionally, the bags have a "one-way exhaust valve" that allows fresh roasted coffee to release carbon dioxide automatically, letting excess gas escape without allowing air to enter. Therefore, storing the bags in a cool, dry place is the best way to preserve coffee beans.
並避免將咖啡豆放進冰箱再拿出，即使密封的很好，因為溫度的變化會造成凝水作用，易讓咖啡豆受潮而變質。烘焙好的咖啡豆含水量很低，容易吸濕受潮而變質。
Avoid storing coffee beans in the refrigerator and taking them out, even if they are well sealed, as temperature changes can cause condensation, leading to moisture absorption and deterioration of the beans. Roasted coffee beans have low moisture content and are prone to moisture absorption and spoilage.
│延伸閱讀：咖啡豆怎麼保存呢？
│Further reading: How to store coffee bean?
善用手沖器具不走味
Using Pour-Over Equipment Properly to Avoid Flavor Lose
您有沒有這種情況？手沖出一杯特別美味的咖啡後，隔天卻找不回手感、沖不出昨日的美味了。影響手沖咖啡的因素很多，包括豆子焙度、沖煮時間、磨粉粗細、手沖水溫等，甚至沖煮的手法都會影響咖啡喝起來的感受。因此，善用溫度計及秤等手沖咖啡器具，並記錄下每個環節的數值，把今天手沖咖啡的美味複製到明天的手沖參數，並把今天不理想的參數調整成明天好喝的咖啡。
Have you ever experienced this? You brew a particularly delicious cup of pour-over coffee one day, but the next day, you can't recreate the same taste or sensation. Many factors affect pour-over coffee, including bean roast, brewing time, grind size, water temperature, and even brewing technique, all of which can affect the coffee-drinking experience. Therefore, it's essential to use tools such as thermometers and scales for pour-over coffee, record the values of each step, replicate the deliciousness of today's pour-over coffee into tomorrow's parameters, and adjust today's undesirable parameters to brew delicious coffee tomorrow.
找到自己喜歡的手沖參數並調整萃取率，今天想沖一杯輕盈酸感的咖啡，可以降低萃取率；或是想喝一杯醇厚苦感的咖啡，可以提高萃取率。這些手沖參數影響咖啡萃取，掌握好手沖器具，沖出心中不走味的好咖啡。
Find the pour-over parameters you like and adjust the extraction rate. If you want to brew a light-bodied, acidic coffee today, reduce the extraction rate; or if you want to drink a rich, bitter coffee, increase the extraction rate. These pour-over parameters affect coffee extraction, so mastering pour-over equipment and brewing a cup of coffee that never loses its flavor.
│延伸閱讀：咖啡萃取率 關鍵4要素
│Further reading: 4 Key Factors Affecting Coffee Extraction Rate
留意上述三點，你應該能夠製作出一杯風味豐富、不走味的手沖咖啡。手沖咖啡是生活的滋味，早晨醒來喝著不走味的咖啡，一年四季都有最值得享受的咖啡風味。
By paying attention to the above three points, you should be able to make a cup of flavorful, never-losing pour-over coffee. Pour-over coffee is the flavor of life, waking up to a cup of coffee that never loses its flavor, enjoying the most enjoyable coffee flavor all year round.
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