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Golden Coastal IPL · Brewed on the Chiba coast

Great times.
Better oceans.

波々 Nami Nami is a crisp Japanese lager. Every can locks 1 kg of CO₂ into the seafloor for 100+ years and brings back 0.2 m² of living coast. Real, and traceable to the exact coastline.

What every can funds

1 kgCO₂ locked in the seafloor
0.2 m²of Japan’s coast restored

Traceable & verified, every can back to its source

A can of Nami Nami Golden Coastal IPL

The beer

First, it’s a great beer.

Bright gold and easy to love. Four hops (Citra, Mosaic, Chinook and Liberty) sit over a clean pilsner malt for citrus and tropical notes with a light lift of pine, then finish crisp and dry the way a proper lager should. Five percent, and built for a second round. Brewed by Kaigan Brewery in a renovated 1898 farmhouse in Minamiboso, Chiba, a few hundred metres from the water this beer helps restore.

India Pale Lager5%350 ml canKaigan Brewery, Chiba
The Kaigan Brewery farmhouse in Minamiboso, surfboards on the grass outside
The brewery today: an 1898 kominka in Minamiboso, boards by the door.
Brewers Mehdy and Philippe standing in front of their tanks in the kura
Mehdy and Philippe, the two brewers, in the kura.
Historic black and white photograph of the farmhouse behind a field
The farmhouse in an earlier century.
A cold glass of golden lager on driftwood, with the sea behind
HopsCitra · Mosaic · Chinook · Liberty
MaltPremium Pilsner

Bright gold · citrus & tropical · a light lift of pine · clean dry finish

How it works

Brewed into every can.

STEP 01

It’s in the recipe.

Nothing to sign up for and nothing to add. The impact is funded the moment the beer is brewed, built into the price like the hops and the malt.

STEP 02

It lands somewhere real.

Each batch backs one named coastline and the community already bringing it back. Eelgrass at Sakushima, tidal flats at Onomichi, kelp at Erimo.

STEP 03

And you can prove it.

Scan the can. Follow it through PocketSeed to the exact credit retired and the coast it funded. Under a minute, all the way to the source.

Where the carbon goes

Tap a marker to explore

CO₂ absorbed as the meadow grows 0.2 m² of living coast per can 1 kg CO₂ locked in the sediment for 100+ years

CO₂ is absorbed as the meadow grows. 0.2 m² of living coast per can above the seabed line, and 1 kg of CO₂ locked in the sediment for 100+ years below it.

You did not donate. You just had a beer. Japan’s coast is a little more alive because a lot of people did the same thing.

The coast

Real coasts. Real communities.

The impact is never abstract. It lands on a named stretch of Japan’s coast, chosen with the people already in the shallows bringing it back. Here are a few of them. The map grows with every batch.

One coastline per batch, in rotation.

Aerial view of Sakushima island and its shallow eelgrass waters, Aichi

Sakushima, Aichi

Eelgrass meadow

For 22 years, the island’s schoolchildren have replanted this meadow by hand. It is the nursery where young fish shelter before they ever reach open water.

Fish nurseryClearer waterSchool replanting

4.9 t CO₂ per hectare each year · eelgrass average

Abuto Kannon temple standing on the rocks above the Seto Inland Sea near Onomichi

Onomichi, Hiroshima

Tidal flat

The Seto Inland Sea’s own filter, and the birthplace of the clams and oysters a whole coast’s food is built on.

Natural filterShellfish & birdlifeFood culture

2.6 t CO₂ per hectare each year · tidal flat average

Aerial view of Cape Erimo, the green headland and rocky reefs at Hokkaido’s southern tip

Erimo, Hokkaido

Kelp forest

Kombu is the soul of dashi. Local fishermen are turning barren isoyake seabed back into forest, the strongest carbon habitat in the whole scheme.

Kombu & dashiFisheries jobsFastest uptake

10.3 t CO₂ per hectare each year · the scheme’s strongest

More than carbon.

Carbon is only where it starts. A restored coastline pays the people around it back in food, clean water, wildlife and pride. JBE certifies the carbon; the coast gives back the rest.

Food from the sea

Seagrass nurseries and tidal flats raise the fish, clams and kombu behind Japan’s food culture. A restored coast is a working kitchen.

Cleaner water

Meadows and flats filter the sea as it moves through them: clearer bays, healthier shellfish, better days on the water.

Life comes back

Fish shelter in the blades, birds return to the flats. Restored habitat means biodiversity you can actually see.

People and pride

School replanting days, fishing co-ops, local stewardship. These projects run on community, and fund it back.

2.5 bn t

CO₂ the ocean absorbs every year, more than all the land’s ecosystems combined (1.9 bn t)

No. 6

Japan has the sixth longest coastline on earth, one of the biggest blue carbon opportunities anywhere

10.3 t

CO₂ a single hectare of kelp forest can draw down in a year, the strongest habitat in the scheme

Figures: JBE J Blue Credit Guideline v2.5 (2025) and IPCC.

The art

Art gives the coast a face.

The art is not decoration. Each edition, an artist answers one coastline in their own way, a real response to a real place. Their work rides wherever the can goes, into hands that do not always visit galleries, and stays on the record long after the batch is gone.

Meet the artists

Community

One beer. All of us.

This is not one brand doing good. It is thousands of people doing it together: every venue that pours it and every person who drinks it is part of the same coastline coming back.

What one round does

Every can locks 1 kg of CO₂ and brings back 0.2 m² of coast. Slide a night out.

4cans
4 kgCO₂ locked away
0.8 m²of coast brought back

A round with friends. About a bath towel of living seabed, funded.

Your venue here Reserved for a founding venue Reserved for a founding venue Reserved for a founding venue Reserved for a founding artist Reserved for a partner

Counting from Batch 01

00 000

Cans enjoyed

00 000

kg CO₂ returned to the coast

0 000

m² coastal habitat restored

00

Founding venues

Wired to PocketSeed, live the day the first batch ships. No invented numbers.

Verified

You don’t have to trust us.

Most good-for-the-planet claims ask for your trust. This one hands you the receipts. Every can opens a public record: the exact credit bought and retired for its batch, checked by an independent third party and certified by JBE, Japan’s blue carbon certification body. You can trace it all the way to the science, in under a minute.

100+ years

Only carbon that stays locked away for over a century even qualifies.

Independently checked

Every credit is verified by a third party, then registered and published.

Global standard

Aligned with the ICVCM Core Carbon Principles for high-quality credits.

  1. Your can

    Scan the QR on the label

  2. PocketSeed

    Keeps it transparent, batch by batch

  3. JBE

    Verifies and retires each credit

  4. J Blue Credit®

    The certified unit of impact

  5. ICVCM aligned

    The global standard it meets

Batch record · 波々 B-01Specimen

Batch 01 · Sakushima, Aichi

1,450 cans, brewed into 1,450 kg of CO₂ locked in the seafloor and 290 m² of eelgrass meadow restored.

CreditJ Blue Credit®
Serial0000 0000 · reserved
StatusRetired, never resold

A specimen of the PocketSeed record every can will open. Goes live the day Batch 01 ships.

Traceable & verified

For venues

Put your name on the coast.

A genuinely good beer, a story your customers love telling, and verified coastal impact with nothing extra to do. Stock Nami Nami and your venue joins the collective, with your name on the public wall from day one.

A beer people love to order

A verified story customers can scan

Your venue on the community wall