Skip to main content
Back to ingredients
Cucumber (Korean) (오이)
☀️Summer

Cucumber (Korean)

오이Oi

Cucumis sativus

黃瓜(Hwanggwa) - Yellow melon — cucumbers turn yellow when fully ripe

Cucumber (황과/黃瓜) is documented in the Donguibogam under 채부 황과조, classified as cool with sweet flavor. The Korean cucumber (취청오이) is distinctly different from Western varieties — smaller, crunchier, with bumpy thin skin and a more concentrated, slightly sweet flavor. In Korean cuisine, cucumbers serve primarily as a cooling counterbalance to spicy dishes, appearing in refreshing muchim and cold soups. Oi-sobagi (stuffed cucumber kimchi) is a beloved summer kimchi made when whole baechu kimchi would ferment too quickly in the heat.

New to Cucumber (Korean)?

Is this edible?

Yes! Korean cucumber (oi) is a summertime staple used in refreshing salads, quick pickles, cold soups, and kimchi. Korean cucumbers are smaller and crunchier than Western varieties, with thin, bumpy skin.

What does it taste like?

Crunchier and more flavorful than English cucumbers, with thinner skin and smaller seeds. Similar to Persian or Japanese cucumbers — crisp, refreshing, and mildly sweet.

Where to buy

Korean grocery stores carry authentic Korean cucumbers. Persian cucumbers (available at most supermarkets) are the best widely available substitute. Japanese cucumbers also work well. Avoid large, waxy American slicing cucumbers.

How to prepare

Wash well — no peeling needed. For oi-sobagi (cucumber kimchi), make lengthwise slits without cutting all the way through. For salads, smash with the flat side of a knife for rustic chunks, or slice into rounds.

Pro tip: Smashing (using the flat side of a knife) creates irregular surfaces that absorb dressing much better than neat slicing. This technique makes a huge difference in oi-muchim (cucumber salad).

Traditional Medicine

Source: Donguibogam (동의보감)

Nature (性)

Cool (涼)

Flavor (味)

sweet

Target Organs (歸經)

stomach, small_intestine

Benefits

  • detox

    Clears heat and quenches thirst — excellent summer cooling food

    열을 내리고 갈증을 멎게 한다

    Source: 동의보감 [탕액편] 채부 황과조

  • digestion

    Replenishes fluids and promotes urination for detoxification

    수분을 보충하고 소변을 통하게 한다

    Source: 동의보감 [탕액편] 채부

Key Compounds

CucurbitacinVitamin KSilicaPotassium

This information is based on traditional Korean medicine texts (Donguibogam) and is for cultural reference only. It does not constitute medical advice.

Seasonal Availability

☀️SummerAvailable year-round

Peak in summer (June-August). Korean cucumbers are smaller and crunchier than Western varieties, with thin, bumpy skin that doesn't need peeling.

Processing Methods (법제)

Light salting(소금 절임)

Brief salting draws out excess water and wilts the cucumber slightly, creating better texture for seasoned dishes and allowing dressings to adhere.

Consumption Tips by Health Goal

Summer cooling

Eat fresh in summer as muchim (seasoned) to cool the body. The cool nature counterbalances hot, spicy Korean dishes.

Culinary Profile

Flavor

Crisp, refreshing, mildly sweet; Korean cucumbers have more concentrated flavor than English cucumbers

Texture

Extremely crunchy and juicy; thin skin with distinctive bumps

Common Uses

Oi-muchim (spicy seasoned cucumber)Oi-sobagi (stuffed cucumber kimchi)Cold noodle garnishFresh banchan

Western Substitutes

Persian/mini cucumbers (closest match)Kirby cucumbersEnglish cucumber (larger, milder)

Related Recipes

Gujeolpan

구절판

Hard | 85 min

Oat-Mushroom Patty Sandwich

귀리버섯패티 샌드위치

Easy | 40 min

Oisobagi (Stuffed Cucumber Kimchi)

오이소박이

Easy | 30 min

Addictive Marinated Summer Vegetables

여름야채 절임

Medium | 20 min

Quick Salt-Pickled Cucumber

오이 아사즈케

Easy | 10 min

Cucumber Pickled in Plum

오이 매실 절임

Medium | 0 min

Setsubun Bean Pickles

볶은 콩 피클

Easy | 0 min

Quick-Pickled Cucumber and Carrot

오이 당근 아사즈케

Easy | 0 min

Turnip and Cucumber in Mustard Soy

순무 오이 겨자간장 절임

Hard | 0 min

Shibazuke (Kyoto Purple Eggplant Pickle)

시바즈케 (교토 자색 채소절임)

Medium | 20 min

Herb Garden Bibimbap

허브비빔밥

Easy | 40 min

Vegetable Rice Balls

야채주먹밥

Easy | 20 min

Yasik Gimbap (Classic Vegetable Rice Rolls)

야채김밥

Medium | 55 min

Nude Gimbap (Inside-Out Rice Rolls)

누드김밥

Medium | 50 min

Kkoma Gimbap (Baby Rice Rolls)

꼬마김밥

Easy | 40 min

Aged Rice Bran Pickle Tea Rice (Ochazuke)

쌀겨절임 오차즈케

Easy | 10 min

Chilled Cucumber Seaweed Soup

새콤달콤 오이냉국

Easy | 15 min

Refreshing Cucumber Miso Soup

오이 된장국

Easy | 10 min

Smashed Cucumber with Cherry Tomato and Fried Tofu

두드린 오이 방울토마토 유부 조림

Easy | 5 min

Royal Court Japchae

궁중 잡채

Hard | 60 min

Royal Court Cold Noodles

궁중 냉면

Medium | 40 min

Jjolmyeon (Chewy Spicy Cold Noodles)

쫄면

Easy | 25 min

Kongguksu (Cold Soy Milk Noodle Soup)

콩국수

Medium | 45 min

Makguksu (Buckwheat Cold Noodles)

막국수

Easy | 20 min

Bibim Naengmyeon (Spicy Cold Noodles)

비빔냉면

Easy | 25 min

Jaengban Makguksu (Sharing Platter Cold Noodles)

쟁반막국수

Medium | 35 min

Hiyashi Chuka (Cold Ramen Noodle Salad)

히야시츄카 (냉라면 샐러드)

Easy | 20 min

Kimchi Bibim Noodles (Cold Spicy Noodles)

김치 송송 비빔국수

Easy | 26 min

Cool Glass Noodle Vinegar Salad

시원한 당면 초무침

Hard | 0 min

Korean-Style Cilantro Glass Noodle Salad

고수 한국풍 잡채 샐러드

Medium | 0 min

Stir-fried Cucumber Namul

오이나물

Easy | 80 min

Cucumber & Perilla Seed Stir-fry

오이들깨볶음

Easy | 40 min

Spicy Cucumber Salad

오이무침 (매콤)

Easy | 10 min

Chilled Tofu and Cucumber Salad

두부오이냉채

Easy | 40 min

Mild Sesame Cucumber Salad

오이무침 (깨소금)

Easy | 26 min

Grilled Eggplant Roll Salad with Balsamic

가지샐러드

Easy | 15 min

Quinoa Vegetable Salad with Lemon Dressing

퀴노아 채소 샐러드

Easy | 26 min

Mixed Bean & Quinoa Salad

콩샐러드

Easy | 120 min

Sunomono (Vinegared Cucumber Salad)

스노모노 (초절임 오이)

Easy | 15 min

Mozuku Su (Okinawan Seaweed Vinegar Salad)

모즈쿠스 (오키나와 해초 초무침)

Easy | 5 min

Mekabu Seaweed Vinegar Salad

미역귀 초무침

Easy | 0 min

Cucumber and Citrus Sesame Vinegar Salad

오이 감귤 참깨초 무침

Easy | 0 min

Daikon and Cucumber Sesame Salad

무 오이 참깨 무침

Easy | 0 min