Oca Tuber

What Is Oca?

Oca tuber (Oxalis tuberosa) is one of the most widely grown tuber vegetables in the Andes after potatoes; it is also known as oca. It produces small, knobby tubers in vivid colors such as yellow, pink, and red.

It has a starchy texture similar to a potato, but its natural acids give it a slightly sour flavor. Leaving the tubers in the sun for a few days reduces the sourness and makes them sweeter.

Oca Tuber Nutrition

Like other starchy tubers, oca provides about 60 kcal per 100 g and contains carbohydrates; it is a source of vitamin C and fiber. Verified USDA data specific to this species is limited, so the values are approximate and based on a similar profile.

What Are the Benefits of Oca Tubers?

With its carbohydrates, fiber, and vitamin C, oca can be included as part of a balanced diet.

This information is general; oca is a food and is not a substitute for medical treatment.

How to Choose Oca Tubers?

Good oca tubers are firm, brightly colored, and free of wrinkles; avoid tubers that are shriveled, sprouting, or soft. Small, uniform tubers are more convenient for cooking.

• The tuber should be firm and brightly colored
• The surface should be unwrinkled and intact
• Avoid tubers that have sprouted or become soft

How to Store Oca Tubers?

Oca tubers keep for several weeks in a cool, dark, well-ventilated place; to sweeten them, leave them in the sun for a few days. Protect them from moisture and sprouting.

Using Oca Tubers in the Kitchen

Oca tubers are boiled, baked, sautéed, and used in soups like potatoes; their thin skin can be left on during cooking. The more tart variety is used in salads and pickles, while sun-sweetened tubers are served as a side dish.

How to Cook Oca Tubers

Wash the tubers, boil them with their skins on, then roast them in the oven or pan-fry them; their small size makes them suitable for cooking whole, and they can be used like potatoes.

Frequently Asked Questions

Why are oca tubers sour?

They have a slightly sour flavor because of their natural acids; leaving them in the sun reduces these acids and sweetens the tuber.

Can oca tubers be used instead of potatoes?

Yes; with a similar starchy texture, they can be used like potatoes in boiled, baked, and sautéed dishes, with a slightly tart flavor.

Should you peel oca tubers?

The thin skin can usually be left on during cooking; washing them well is enough, but they can be peeled if desired.