Sea Grapes (Umi Budo)

What Is Sea Grapes (Umi Budo)?

Sea grapes (Japanese "umi budo", literally "sea grapes"), is a seaweed species (Caulerpa lentillifera) known for its appearance resembling a miniature bunch of grapes made up of small green beads. It is grown and consumed especially in Japan's Okinawa region and the Philippines.

Each small bead is a fluid-filled bubble surrounded by a thin membrane; when taken into the mouth, it pops slightly, leaving a texture reminiscent of caviar and a mildly salty-oceanic taste. This unique texture sets it apart from other edible seaweeds.

Nutritional Values of Sea Grapes

100 grams of fresh sea grapes contains approximately 20 kcal of energy; it carries fiber and marine-sourced iodine. Values are approximate.

How Should Sea Grapes Be Consumed?

Sea grapes, as a low-calorie seaweed, can be considered part of a balanced diet; it is generally consumed raw and fresh.

This information is general; sea grapes is a food, not a substitute for medical treatment.

How to Choose Sea Grapes?

Good sea grapes have beads that are vivid green, plump-firm, and fresh. Beads that are yellowed, crushed, or have lost their liquid (deflated) are not preferred.

• Beads should be vivid green and plump
• Should have a firm, uncrushed structure
• Should not be deflated or yellowed

How Are Sea Grapes Stored?

Sea grapes, unlike what one might expect, are not put in the refrigerator; cold temperature causes the beads to lose their liquid and deflate. They are kept fresh for a short time (1-2 days) at room temperature in open air.

Using Sea Grapes in the Kitchen

Sea grapes are most often served plain, or lightly flavored with soy sauce or ponzu, in Okinawan cuisine; usually presented as a cold appetizer on fresh ice.

Why Are Sea Grapes Not Put in the Refrigerator?

Their beads are sensitive to low temperature; when chilled, their cell structure breaks down and they lose their internal liquid, shrinking and losing their characteristic "popping" texture. This is why room temperature is preferred to keep them fresh.

Frequently Asked Questions

Do sea grapes really taste like caviar?

Its taste is different from caviar (mildly salty-oceanic, without the fish oil note); the similarity is not so much in taste as in the popping bead texture in the mouth.

Are sea grapes eaten raw?

Yes; they are most often consumed raw and fresh. Cooking them completely destroys their characteristic texture.

Are sea grapes available in Turkey?

They are not common; the fresh form is almost never found, though some Japanese restaurants may offer it through special sourcing.