Why Kimchi Used to Be White
Today, we associate kimchi with a vibrant, fiery red color, but it wasn't always spicy. For centuries, the Korean staple was seasoned only with salt, garlic, and ginger. Chili peppers, native to the Americas, were not introduced to Korea until Portuguese traders brought them in the late 16th century, forever transforming Korean cuisine.
Preservation Before the Red Pepper
Modern depictions of Korean dining almost invariably feature a bowl of vivid crimson kimchi, coated in a paste of coarse red pepper flakes, garlic, and fermented seafood. Yet for the vast majority of its long history, kimchi bore no resemblance to this fiery image. The earliest ancestors of kimchi were pale, mild, and dominated by the simple, clean taste of salted vegetables submerged in clear brines or flavored with basic aromatics.
The origins of kimchi lie in the necessity of surviving the Korean Peninsula's freezing winters. In an era before mechanical refrigeration, agricultural communities needed a reliable method to store perishable vegetables harvested in autumn so they would last through the barren months of winter and early spring. The simplest and most effective technique was salting and pickling. By soaking vegetables in salt brine, farmers created an environment where beneficial lactic acid bacteria could thrive while harmful rot-causing microbes were suppressed, yielding a sour, nutritious food that could keep for months underground.
The Ingredients of Ancient Kimchi
During the Three Kingdoms period and the subsequent Goryeo Dynasty, the primary vegetables used for pickling were not the napa cabbages that define modern kimchi, but rather hardy root crops and native greens. Radishes, turnips, eggplants, and wild mountain herbs formed the core of the seasonal preserves. Early Korean texts describe vegetables preserved in salt, soybean paste, grain mashes, or fermented alcoholic vinegars.
To enhance the flavor, early cooks relied on native seasonings and spices long before the chili pepper arrived in East Asia. Garlic, ginger, scallions, and fermented fish sauces provided savory depth, while indigenous spices such as sansho (Korean pepper) and mustard greens provided a mild, sharp bite. The resulting dishes—ancestors of today's clear water kimchis—were savory, refreshing, and entirely devoid of the vibrant red hue and lingering heat that modern diners expect.