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Bokbunja-ju (Black Raspberry Wine)

Bokbunja-ju (Black Raspberry Wine)

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Summer bokbunja steeped with sugar and strong damgeum soju until the berries give up their deep tart color, a make-ahead Korean fruit wine for small cold cups and a slow table.

Beverages
Korean
Make Ahead
Date Night
30 min
Active Time
0 min cook2881 hr 30 min total
Yieldabout 1.8 liters, 18 to 24 small pours

Bokbunja comes to the market for a short summer, usually late June into July, and then it vanishes unless someone froze it properly. The berries from Gochang are small, dark, and tart, not the soft perfume people expect from dessert raspberries. Cook the month you're standing in: make this with fresh berries when they stain your fingers, and use unsweetened frozen bokbunja the rest of the year rather than pretending pale supermarket fruit can do the same work.

Bokbunja-ju is often called black raspberry wine in English, but the home jar I trust is an infusion, not a closed-jar wild ferment. Fruit, sugar, and strong damgeum soju (infusion soju) are enough. The technique lives or dies by three plain things: a clean dry jar, a spirit strong enough to protect the fruit, and patience after straining. Weak table soju makes a sweet drink quickly and a risky one slowly. Use the strong one.

Notebook 38 says 1 kilogram fruit, 450 grams sugar, 1.8 liters of 30 percent soju. That ratio keeps the berry tart and deep, with sweetness underneath instead of pasted on top. Tonight you'll sort, dry, layer, pour, and put the jar away. After that, the work is waiting and turning the jar once in a while, which sounds easy until you have to leave it alone.

Bokbunja is the fruit of Rubus coreanus, and Korean materia medica such as Heo Jun's Dongui Bogam (1613) treated the dried berry as medicine before it became a popular country wine. Modern bokbunja-ju is tied especially to Gochang County in Jeonbuk, the old North Jeolla region, where organized cultivation and local wineries made the black raspberry a regional marker in the late twentieth century. The name carries an old folk joke about vigor, from bok (to overturn) and bunja (chamber pot), a story that tells how medicinal reputation and table pleasure became tangled together.

The technique, the tradition, and the story behind every dish.

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Ingredients

fresh bokbunja (Korean black raspberries)

Quantity

1 kg

ripe and unsweetened, or use unsweetened frozen bokbunja

white sugar

Quantity

450 g

damgeum soju (Korean infusion soju)

Quantity

1.8 liters

30 percent ABV preferred

cooled 1:1 simple syrup (optional)

Quantity

up to 6 tablespoons

Equipment Needed

  • 3-liter glass jar with nonreactive lid
  • Kitchen scale
  • Fine-mesh sieve
  • Clean cotton cloth or cheesecloth
  • Funnel
  • Two or three clean glass bottles, 750 ml each

Instructions

  1. 1

    Clean the jar

    Wash a 3-liter glass jar, lid, funnel, and spoon in hot soapy water. Rinse well, then sanitize with boiling water or a dishwasher hot cycle and let everything air-dry completely. A dry jar matters because extra water lowers the alcohol strength, and wet corners invite mold.

  2. 2

    Sort the berries

    Pick through the bokbunja and discard any berry with mold, a sour fermented smell, or leaking flesh. If the fresh berries are dusty, rinse them quickly in cold water, drain, and spread them on towels until the surface is dry, about 1 hour. Do not soak them. Frozen unsweetened bokbunja can go into the jar frozen and unrinsed.

  3. 3

    Layer with sugar

    Put one third of the berries in the jar, scatter over one third of the sugar, and repeat until both are used. Press lightly with a sanitized spoon just to crack some berries, not to mash the seeds. Let the jar stand 1 hour, until the sugar begins drawing out dark juice. This starts extraction without turning the finished drink cloudy and bitter.

  4. 4

    Pour the soju

    Pour in the 30 percent damgeum soju until the fruit is covered. If the berries are not submerged by at least 2 cm, add more soju, not water. Seal the jar and write down the date. Weak table soju is for drinking with supper; it is not for holding fruit at room temperature for months.

    Use 25 to 35 percent infusion soju, with 30 percent as the clean middle. It extracts color and flavor while keeping the jar safer than low-proof drinking soju.
  5. 5

    Tend the first week

    Keep the jar in a cool, dark place, ideally 15 to 20 C. Turn the jar gently once a day for the first 7 days, until the sugar dissolves and the floating fruit stays wet. If fruit dries above the liquid, push it down with a sanitized spoon or add a little more soju. If you see fuzzy mold or smell rot, discard the batch.

  6. 6

    Age and strain

    After 90 days, strain the liquid through a fine sieve lined with clean cotton or several layers of cheesecloth. Let it drip, then press the fruit lightly. Do not wring it hard, or the seeds give bitterness and the wine turns muddy. The liquid should be deep garnet, with the berries faded and spent.

  7. 7

    Rest and balance

    Bottle the strained bokbunja-ju in clean glass bottles and rest it in a cool, dark place for 30 days. Taste it cold. If it is too sharp, add simple syrup 1 tablespoon per 750 ml bottle, wait a day, then taste again. Stop at 3 tablespoons per 750 ml. The berry should speak first, and sugar should answer from behind.

  8. 8

    Serve it cold

    Chill the bottle well and pour 50 to 60 ml into small cups. For a lighter glass, mix 1 part bokbunja-ju with 2 parts cold sparkling water. Serve it after dinner or beside grilled meat, and keep the bottle cold once opened.

Chef Tips

  • Buy bokbunja in late June and July if you can, especially from Gochang or another Jeolla grower. The berries should be dark, tart, and fragrant, with no white fuzz. Frozen unsweetened berries are an honest winter choice.
  • Do not use 16 to 17 percent drinking soju for a room-temperature jar. When fruit and sugar sit for months, the alcohol strength matters. Use damgeum soju made for infusions, preferably 30 percent ABV.
  • The sugar is measured at 45 percent of the fruit weight. More sugar extracts quickly, but too much turns the drink flat and syrupy. If you want it sweeter, adjust after aging, when you know what the berry gave you.
  • A glass jar is easiest because you can see whether fruit is floating dry or anything has gone wrong. A glazed onggi can work, but an unglazed crock will absorb aroma and alcohol, so I do not use it for this drink.
  • Serve bokbunja-ju cold in small cups. It is often poured with grilled eel, duck, or pork, but it also sits well after dinner with pear slices and a quiet table.

Advance Preparation

  • Start this at least 4 months before you plan to serve it: 90 days for steeping, then 30 days for the strained wine to settle.
  • For a date-night bottle, strain and bottle it a week before serving at the latest. The flavor is rounder after the full 30-day rest, and better still after 6 months.
  • When made with 30 percent soju, strained, and bottled cleanly, bokbunja-ju keeps about 1 year in a cool, dark place. Refrigerate after opening.
  • If you used low-proof table soju despite the warning, keep the jar refrigerated from the beginning and drink the strained batch within 1 month. I would rather you use the right soju.

Frequently Asked Questions

Nutrition Information

1 serving (about 85g)

Calories
155 calories
Total Fat
0 g
Saturated Fat
0 g
Trans Fat
0 g
Unsaturated Fat
0 g
Cholesterol
0 mg
Sodium
0 mg
Total Carbohydrates
19 g
Dietary Fiber
1 g
Sugars
18 g
Protein
0 g

Note: Chef personas and recipes are created with AI assistance. Cook with care: follow safe food-handling practices, check doneness with a thermometer when needed, and adapt for allergies and your kitchen.

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