100% Natural & Organic

Okinawa Sea Grapes

Discover “Green Caviar”

Natural Umibudo Sea Grapes

Sea grapes, also known as Umibudo, is highly regarded for its succulent appearance, refreshing taste and pleasing “pop” when you eat it. It’s a tropical aquatic vegetable that loves clean water and is very popular in Japan where it is considered a delicacy.

Recommended as crunchy salad booster, snack, appetizer, canapé, antipasti, entrée, hors d’oeuvre or a decorative sideboard.

Sea Grapes are a vibrant green seaweed that owes its name to its grape-like appearance.
The taste is fresh, reminiscent of cucumber with a hint of salt water.
For many, seagrapes are the vegetarian alternative to caviar and it lends itself to similar applications.

It’s a popular seaweed in Okinawa, Japan, where it’s enjoying a reputation for increasing longevity.
Our seagrapes are harvested in the clean waters of the Pacific Ocean (Okinawa) and are then dehydrated and packed in brine.
Preparation is simple – just rinse in fresh water for a few minutes to get the sea grapes back to their original size and reduce salt content.

Basically unknown outside of Japan sea grapes make an awesome addition to any salad! Have a look at our recipe book for inspiration.

Fresh organic sea grapes

Gourmet Sea Grapes

The vegan friendly “green caviar”

Umibudo, as sea grapes are called in Japanese, are found only in the deep waters off Okinawa, Japan. This “seaweed caviar” is eaten raw, often with soy sauce and wasabi.

Chefs use them as garnishes for seafood-based pasta dishes for example. You can also blanch and shock them to remove extra salt, then dip them in a citrus-soy sauce.

Check out our recipe blog for more inspiration on how to properly serve your succulent green caviar sea grapes.

Umibudo Sea Grapes

A raw, vegan Japanese delicacy

Our sea grapes are grown naturally and slowly in the beautiful waters of Okinawa, Japan. The strong sunlight and natural minerals provide nutrients to the grapes making them larger and crunchier compared with other growing regions which we’re very proud of.

Sea grapes are often referred to as “green caviar” because the string of shiny pearls pop upon eating—much like munching on a frond of roe. They’re commonly used in salads, or as garnish for sashimi, rice bowls, and noodle dishes.

This kind of seaweed can reach up to 5 meters in length but only the extremities including the so called “sea grapes” are consumed.
Here in Okinawa, Japan we harvest our sea grapes where they have been enjoyed for eons. Sea grapes are usually eaten raw with vinegar, as a snack or in a salad. You can enjoy them raw with soy sauce or rice vinegar mixed with mustard.

Organic Sea Grapes on spoon

Natural, refreshing taste

Crunchy salad booster

“I simply fell in love with this seaweed. It is beautiful, like most of other seaweed very healthy, it is tasty and refreshing and not slimy at all. I tried it for the first time in Japan, where they call it Umibudo.”

In search of other secrets of nature, we have found in Japan: Green caviar! Sea water plants with the highest nutrient density from the genus of Caulerpa Lentillifera algae, a natural seaweed – algae, which is cultivated, cultivated and processed in Japan.

Due to their exceptional surface, these aquatic plants can absorb valuable nutrients such as amino acids, mineral salts, trace elements, vitamins, polyphenols and flavonoids from the seawater and – in comparison to terrestrial plants – store up to 1000 times higher concentration!

Grown in natural conditions

Clean, organic and so delicious!

After years of research our Japanese scientists succeeded in cultivating sea grapes in natural organic conditions, keeping them 100% organic and 100% non-GMO. Okinawa style sea grapes cultivation lets you enjoy the great natural taste of sea grapes all year around with the certainty of eating sea grapes that have been cultivated in controlled fresh water sources without any harmful bacteria or chemicals.

Soak in water and they come back to life!

Due to our unique dehydration method the sea grapes will come back to “life” with their crispy texture and yummy flavour once placed in fresh water for a few minutes.

Sea grapes are a very delicate seaweed and shrivel at low temperatures. Hence, storage of fresh sea grapes is very difficult as they lose their flavor very quickly. Our dehydration technique provides longer shelf life with the ability to store in low temperatures, although not required as dehydrated seagrapes can be stored at room temperature for up to 12 months.

Green Caviar Umibudo Sea Grapes Japanese Delicacy Seaweed

Umibudo Sea Grapes

Green Caviar

USD $28.78Add to cart

Sea grapes are a delightful sea vegetable that looks like tiny clusters of caviar, with the brininess of the sea and a satisfying pop.

“The sea grapes seem to almost explode in your mouth releasing their unique, delicious flavor!”

Each bag ordered contains 100g/3.5oz dehydrated Umibudo algae which yields about 500g/1 pound of fresh sea grapes once soaked.

In Japan, this algae is a delicacy and makes for a fantastic decoration. The sea pearls/sea grapes are eaten fresh, dressed as a salad or simply as a snack in between. They slightly taste like seaweed and have a consistency like real caviar, a crisp freshness kick when eating the natural sea grapes is guaranteed.

all organic Umibudo Sea Grapes Green Caviar

Net weight: 3.5oz (100g) | Best before: minimum of 6 months after purchase, 12 months after production | Contents: 100% dehydrated sea grapes containing natural sea salts.
Dietary & Allergy Info: 100% vegan, natural & raw. Gluten & Dairy Free | Non-GMO
Rich in minerals such as: iodine, iron, calcium, magnesium, sodium, potassium, zinc, copper and Vitamin A and C.

How to prepare Sea Grapes?

add seagrapes to a cup with water
let seagrapes soak for 5 min
enjoy your seagrapes

Add Seagrapes & Water

Let soak for 5min

Smile & Enjoy!

Open your pack of dehydrated seagrapes and place the desired amount in a bowl with at least 1/4 gallon (1 liter) of water.
For 1 person we recommend 0.7oz/20g of seagrapes, so a whole pack will be enough for 5 people.

Believe us, the seagrapes will increase 5x in size.

Grab a cup of tea and watch the magic unfold in front of your eyes! Soak them for at least 5 minutes.
The seagrapes will swell up and come back to life, soaking up all the water and getting hydrated.
This step is very important as it’ll take away the saltiness and really make your seagrapes pop in your mouth!

Drain the water and enjoy your crunchy seagrapes with sauces you love, on salads or in soups.

If you do not use them all right away, simply keep them at room temperature for up to 5 days. They’re a tropical seaweed and hate cold conditions – so no fridge for them!

Sea grapes Recipe Ideas

The fresh and crunchy texture of sea grapes is incomparable!

Sea Grapes are super healthy for you and since they only have 4 kcal per 3.5oz/100g once soaked and ready to eat, you can use it in salads as topping, crunchy salad booster, snack, appetizer, canapé, antipasti, entrée, hors d’oeuvre or a decorative sideboard. The possibilities are endless!

They also go great on their own with soy sauce or mustard sauce when served as a light snack.

enjoy sea grapes fresh

Sea grapes is a seaweed like no other! You can eat them fresh on their own, either with sauces you love or completely withou. Once you pop the small sea grapes in your mouth a delicious, slightly salty ocean flavor gets released.
You’ll fall in love with this unique flavor instantly!

Seagrapes wrapped in sushi

Each grape is large, full of flavor and has great texture which makes it the perfect addition to sushi. Their slightly salty flavor complements the sushi rice and sashimi/seafood in a delightful way.

Sea Grapes are rich in minerals & vitamins, have anti-bacterial & anti-fungal properties and are said to be good for high blood pressure & rheumatism.

We’ve combined and prepared all scientific resources on the health benefits of sea grapes on a dedicated health benefits page for you to read through.

Sea grapes were usually only sold fresh in a few select places in Japan – until now. With the help of German technology we dehydrate the sea grapes without loss of any nutritients, boosting shelf life to 12 months without refrigeration. Our state-of-the-art process makes it possible for us to ship this delicious seaweed to anywhere in the world!

Enjoy sea grapes as topping on any kind of sushi or rice bowl.
The crunchy and fresh texture of these delicious grapes will add that special Japanese twist to your meal. Who knew seaweed could be so wonderful?

100% Natural & Organic. Sea Grapes are the perfect substitute for caviar – hence the name “Green Caviar”.
A great fine food addition for vegans and vegetarians! Delicious and only 4 kcal per 3.5oz/100g these tiny little grapes will leave you longing for more…

Worldwide Delivery

We ship globally through UPS Express & Deutsche Post DHL. The fresh and crunchy texture of sea grapes is unbeatable!

Buy now

Raw, vegan Japanese delicacy

We proudly present our latest discovery from the depths of the ocean: Green caviar from Okinawa, Japan!

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Get in touch!

Already got creative with your seagrapes in the kitchen?
Tag your posts with @seagrapes24 and #seagrapes24 for a shoutout form us!

Questions regarding your seaseagrapes?
Drop us a note or call us during office hours at
+1 (315) 407-1990 (USA) or +49 (7525) 52-99998 (Germany)

Warehouse & Office Address
Fluxias GmbH, 88263 Horgenzell, Germany
FDA registration number is 17341366304.
Company registration number HRB733386.
All orders are dispatched from our warehouse within 24h of ordering, from Mon-Fri.