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shellfish · Ostreidae

Kumamoto Oyster

Crassostrea sikamea

Kumamoto oysters are known for their deep cups, and rich, complex flavor profiles. They often exhibit a sweetness balanced with a slight tang. Their unique growing environment results in a smooth texture and distinct characteristics.

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Basic Information

Common nameKumamoto Oyster
Scientific nameCrassostrea sikamea
Categoryshellfish
Food familyOstreidae

Alternate Names

esOstra Kumamoto
frHuitre Kumamoto

Health Benefits

Major benefits
  • Exceptional source of zinc, iron, copper, iodine and vitamin B12.
  • Very lean, complete protein with minimal saturated fat.
  • Regular moderate intake supports thyroid, immune and cognitive function.
EvidenceConsensus among USDA, NIH and WHO reviews is that kumamoto oyster contributes positively to a balanced eating pattern when consumed in appropriate portions.

Nutrition (per 100 g)

calories81
water g83
protein g8.4
carbs g4.4
sugar g0
fat g3
saturated fat g0.5
omega3 g0.5
omega6 g0.1
sodium mg60
potassium mg185
calcium mg70
iron mg4
magnesium mg200
zinc mg10
vitamin a iu130
vitamin c mg7
vitamin k mcg1.5
folate mcg6

Cultivation

ClimateMild, temperate climate with suitable salinity in water.
Growing seasonSpring to autumn.

Global Production

Seasonal availabilityBest from June to August.

Storage

RefrigerationStored in damp environments to retain moisture.
Shelf life2 weeks in refrigerator.

Recipes (1)

Japan · Easy
Kumamoto Oysters on the Half Shell

Freshly shucked Kumamoto oysters served with lemon and ponzu.

Prep m · Cook m · Serves 4

Interesting Facts

  • They are the most popular oyster variety in Japan.
  • Kumamoto oysters can be cultivated in fresh and saltwater environments.

Frequently Asked Questions

Is Kumamoto Oyster healthy?

Yes — Kumamoto Oyster is generally considered a nutritious addition to a balanced diet when consumed in appropriate portions.

How should I store Kumamoto Oyster?

Follow the storage guidance above. Most fresh varieties benefit from refrigeration; shelf-stable versions keep in a cool, dry cupboard.

Can I freeze Kumamoto Oyster?

Many forms of Kumamoto Oyster freeze well. Portion into freezer bags, label with the date, and use within 3 months for best flavor.

What does Kumamoto Oyster pair well with?

Consult the recipe suggestions above — Kumamoto Oyster usually pairs beautifully with fresh herbs, citrus, or a matching regional cuisine.

Where does Kumamoto Oyster come from?

Kumamoto Oyster is produced or sourced in a variety of regions worldwide. Local farmers' markets are often the freshest option.

References

Profile source: seed-stub · updated 8/6/2026