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Chiba Sanchoku Service
Chiba City, Chiba (fish from Chōshi/Kujūkuri), Japan ✓ verified
Additive-free Chiba specialty processor whose Chōshi ma-iwashi oil sardine is a perennial number-one in Japanese oil-sardine rankings and whose トロ缶 (toro iwashi) line brands peak-fat sardines like fatty tuna.
At a glance
| Country | Japan |
|---|---|
| Region | Chiba (fish from Chōshi/Kujūkuri) |
| City | Chiba City |
| Founded | 1976 Founded January 26, 1976 |
| Company | Additive-free specialty processor / co-op supplier (22 staff) |
| Price | $$$ — premium |
| Species | Sardinops melanostictus (Japanese sardine / ma-iwashi) · Confirmed |
Notable facts
- Perennial #1 in Japanese oil-sardine rankings (my-best).
- Distributed via natural-food shops and co-ops rather than mainstream supermarkets.
- The toro iwashi (トロ) branding applies fatty-tuna-style language to peak-fat sardines.
- States まいわし (Sardinops melanostictus) on its product pages — one of only three Japanese brands in this batch with label-confirmed species.
Products
オイルサーディン 100g
Non-GMO first-press rapeseed oil, sun-dried salt, organic laurel Sardinops melanostictus · Confirmed
Chōshi ma-iwashi, about 3 fish per can, additive-free
とろイワシ水煮 150g (トロ缶 series)
Water/brine (mizuni) Sardinops melanostictus · Confirmed
Peak-fat 'toro' sardines
ミニとろイワシ味付 (トロ缶 series)
Sweet soy simmer Sardinops melanostictus · Confirmed
銚子産プレミアムとろイワシ (limited)
Premium limited edition Sardinops melanostictus · Confirmed
Evidence & uncertainties
Overall sourcing confidence for this profile: ✓ verified — corroborated by two or more sources.
Species — Confirmed: Latin name shown on packaging or certification.