What Does a Celery Root Look Like? Identifying Celeriac

A celery root, often called celeriac (scientific name: Apium graveolens var. rapaceum), appears as a large, roundish, and notoriously gnarly bulb. It typically ranges from off-white to light brown in color. Its exterior is rough, irregular, and covered with numerous small, wiry rootlets and deep crevices. This distinct appearance makes it one of the less conventionally attractive vegetables in the produce aisle.

Its humble, earthy exterior should not deter home cooks. Beneath this “hairy armor,” a surprisingly crisp, creamy white flesh exists. This flesh offers a delicate, nutty, and subtly celery-like flavor. Understanding the unique appearance of celery root is the first step to unlocking the versatility and culinary potential of this underrated root vegetable.

Unpacking the Celery Root’s External Characteristics

Consumers first notice the distinctive, often mud-flecked, and irregular shape of a celery root. It typically grows round or bulbous, resembling a misshapen turnip or a large, bumpy potato.

Color and Texture of the Exterior

The skin of celery root ranges from off-white to light brown or greyish-green. It is thick, fibrous, and rough, featuring many knobby protrusions and tangled rootlets. These rootlets extend from its surface, contributing to its “gnarly” or “hairy” appearance.

Evan Kleiman, a culinary expert, highlights the intimidating appearance of celery root. He states, “Celery root, aka celeriac, is the knobby, often mud-flecked bulb of a variety of celery grown for its swollen stem base rather than its stalks. It’s ugly and intimidating.” This rough exterior serves as a defining characteristic, differentiating celeriac from smoother root vegetables.

Size and Weight

Celery root generally measures about 4–5 inches (10–13 cm) in diameter and typically weighs around 1–2 pounds (450–900 grams). However, its size can range from that of an apple to a small cantaloupe. Consumers often prefer medium-sized roots for their tenderness and flavor. Larger roots may sometimes have woody or hollow centers.

Delving into the Celery Root’s Internal Structure

A beautiful transformation occurs after peeling away the tough, unappealing exterior. The interior of the celery root presents a stark contrast to its outside.

Color and Texture of the Flesh

The flesh of a celery root is creamy white or ivory. It has a dense, firm, and crisp texture when raw. Many describe it as similar to a potato but less starchy. When cooked, it becomes silky and tender, transforming into a creamy consistency suitable for mashing or pureeing.

The edible part of celeriac is actually a swollen stem base, known as a hypocotyl, rather than a true root, despite its visual resemblance to a root. This botanical detail explains its unique flavor and texture profile. It sets celeriac apart from other traditional root vegetables.

Aroma and Flavor Profile

Raw celery root has a faintly aromatic scent. Its taste combines notes of celery and parsley, often with a subtle nuttiness. Some describe its flavor as slightly sweeter than the celery stalks we commonly eat. When cooked, its flavor mellows and becomes slightly sweeter, enhancing its savory notes.

Distinguishing Celery Root from Other Vegetables

Celery root has distinct characteristics, though people often compare it to other root vegetables due to its subterranean growth and general shape.

Consumers must note that celery root is not the root of the familiar celery stalks found in grocery stores. They are botanically related, both descendants of wild celery. Celeriac is specifically cultivated for its swollen stem base, not its stalks.

Selecting and Storing Celery Root

Choosing a good celery root ensures a positive culinary experience. Shoppers should look for specimens that are firm, heavy for their size, and free of soft spots, cracks, or discoloration. Some rootlets and dirt are normal, but a smoother exterior will make peeling easier.

Medium-sized roots, roughly 3–4 inches in diameter, are generally recommended. These roots tend to be more tender and flavorful, avoiding the woody texture sometimes found in very large ones. “Be sure that its center isn’t hollow, which is a sign that the celeriac is of poor quality,” advises Healthline.

Storage Best Practices

• Refrigeration: Trim off any attached leaves and roots. Store unwashed celery root in a perforated plastic bag or wrapped in a damp paper towel in the refrigerator’s crisper drawer. Celery root can keep for several weeks, or even up to 3-4 months if stored between 0°C and 5°C with high humidity.
• Preventing Discoloration: Once peeled or cut, celery root oxidizes quickly. It will turn brown. To prevent discoloration, immerse the cut pieces immediately in acidulated water (water with lemon juice or a splash of vinegar).

“Whole celeriac can last up to two months if stored properly. Once it is cut, store it in a refrigerator for up to a week,” states Mad Acre Farms.

Preparing Celery Root: From Gnarly Exterior to Culinary Gem

Peeling celery root represents the biggest hurdle for many home cooks. Its uneven, knobby surface makes a standard vegetable peeler challenging to use effectively.

Evan Kleiman suggests, “Peeling it is the biggest challenge, which is why most people shy away from the knobby thing. It isn’t difficult to do, but it does require attention since it’s so uneven on the outside. The exterior is thick, fibrous, and irregular. You’re not ‘paring.’ Think of it like you’re carving away armor. I use a sharp paring or chef’s knife instead of a peeler.”

Step-by-Step Peeling Guide

1. Stabilize: Cut off the root end and the stem end to create flat surfaces. This allows the celery root to sit securely on a cutting board.
2. Carve: Use a sharp chef’s knife or a sturdy paring knife to carefully cut away the thick, fibrous skin, following the curve of the vegetable. You can imagine peeling an orange with a knife, but with more resistance.
3. Clean: Dig out any remaining bumps, deep cracks, or dirty pits with the tip of your knife.
4. Submerge (Optional but Recommended): If not using immediately, place the peeled or cut celery root into acidulated water to prevent browning.

Once peeled, the creamy white flesh is ready for a multitude of culinary applications. Consumers can enjoy it raw, grated into salads or slaws, or cooked in various ways such as roasting, boiling, mashing, or adding to soups and stews.

Nutritional Powerhouse Beneath the Rough Exterior

Beyond its unique appearance and flavor, celery root is a nutritional powerhouse. It serves as a low-calorie, low-carb alternative to potatoes. Celery root is packed with essential vitamins, minerals, and dietary fiber.

• Vitamins: Celery root is an excellent source of Vitamin K, Vitamin C, and B vitamins (especially B6).
• Minerals: It is rich in potassium, phosphorus, manganese, calcium, and magnesium.
• Antioxidants: It contains beneficial antioxidants. These help combat inflammation and reduce oxidative stress.
• Fiber: It is high in dietary fiber. This supports digestive health and can help regulate blood sugar levels.

“Celeriac is a nutrient-dense, low-calorie vegetable with significant health benefits, including cardiovascular support, anti-inflammatory effects, improved digestion, bone health promotion, and potential neuroprotective properties,” according to Dale Pinnock, a leading nutritionist. This makes celery root a valuable addition to a balanced diet, offering impressive health benefits such as improved digestion, bone health, and heart health. For more detailed nutritional information, visit NutritionValue.org.

Historical Roots and Modern Popularity

Celery root has a long and storied history. Its origins trace back to wild celery in the Mediterranean and Northern Europe. Ancient texts like Homer’s Iliad and Odyssey mentioned it as “selinon.” People initially cultivated it for medicinal purposes.

Celery root has long been popular in European cuisines, particularly in France (where céleri rémoulade is a classic dish), Germany, and Scandinavia. It has seen a resurgence in popularity in the US. Its versatility and unique flavor make it a favorite among chefs and health-conscious eaters alike.

FAQs About Celery Root

What is celery root also known as?

Celery root is also widely known as celeriac, knob celery, or turnip-rooted celery. These names refer to the same distinct root vegetable.

Is celery root the same as the root of regular celery?

No, celery root is not the root of the celery stalks commonly found in grocery stores. While botanically related and derived from wild celery, celeriac is a different variety. People specifically cultivate it for its enlarged, edible base, not its stalks.

How do I choose a good celery root at the store?

Consumers should look for celery roots that are firm, feel heavy for their size, and have no soft spots, cracks, or signs of mold. They should opt for medium-sized roots (around 3-4 inches in diameter) for optimal tenderness and flavor.

How do you peel a celery root?

To peel a celery root, first cut off the top and bottom to create a stable base. Then, use a sharp chef’s knife or sturdy paring knife to carve away the thick, knobby skin, following the contours of the vegetable. Discard the skin and any deep crevices.

What does celery root taste like?

Raw celery root has a mild, earthy flavor reminiscent of celery and parsley, with a hint of nuttiness and a crunchy texture. When cooked, its flavor becomes slightly sweeter and more mellow, with a silky texture similar to a potato.

Can you eat celery root raw?

Yes, celery root can be eaten raw. It has a crisp texture. This makes it excellent for grating into salads, slaws, or remoulades.

Conclusion

The celery root, or celeriac, is a truly remarkable vegetable. Its unpretentious, gnarly exterior hides a versatile, flavorful, and nutrient-dense interior. This interior can elevate a wide array of dishes. From its off-white to light brown, bumpy skin to its creamy white flesh and subtle celery-like flavor, understanding what a celery root looks like is the first step toward appreciating its culinary potential. Consumers should not be intimidated by its appearance; with a sharp knife and a willingness to explore, they will discover why this “ugly duckling” of the produce aisle has become a cherished ingredient in kitchens around the world.