2026 Hokkaido Sea Urchin Procurement Guide: Best Quality Tips for Summer
I. Overview of 2026 Hokkaido Sea Urchin Harvest Season
Hokkaido is globally recognized as a premier sea urchin producing region, with the summer months (June to August) marking the golden window when our two main varieties—the Ezo bafun uni and Ezo purple uni—simultaneously reach their peak quality. Influenced by coastal ocean water temperatures off Hokkaido in 2026, industry projections indicate the bafun uni season will officially begin in mid-June, approximately one week earlier than in 2025.
For Macau restaurant and hotel procurement teams, understanding the harvest rhythm is crucial: securing orders in advance ensures prioritized supply access during peak season. Inari Global Foods directly partners with Hokkaido fishing cooperatives, issuing procurement forecasts to partner restaurants six weeks before each season begins, ensuring Macau clients never miss out on the finest product due to supply constraints.
II. Ezo Bafun Uni vs Ezo Murasaki Uni: Summer Characteristics Comparison
Each variety has its own strengths during summer months, suited for different cooking and presentation needs:
| Characteristics | Ezo Bafun Uni | Ezo Murasaki Uni |
|---|---|---|
| Color | Deep orange to amber | Light yellow to cream |
| Sweetness | Very high, with oceanic freshness | Medium, more refined |
| Fat Content | Higher, rich and creamy texture | Lower, delicate texture |
| Summer Supply | Peak season (June-August), abundant | Peaks in June, gradually decreases after |
| Ideal Uses | Sea urchin sashimi, sea urchin rice, sea urchin pasta | High-end sushi bars, sea urchin-steamed egg custard |
| Wholesale Pricing | Higher (strong demand) | Slightly lower (smaller supply) |
Inari recommends sourcing a mix of both varieties—using Bafun Uni as the featured presentation and Murasaki Uni as a premium garnish to create visual depth and flavor contrast on your menu.
III. Rebun Island vs. Shakotan vs. Rishiri Island: Origin Comparison
Each Hokkaido sea urchin producing region has its own unique characteristics. Understanding these regional differences aids procurement decision-making:
Rebun Island
Located at the northernmost tip of Hokkaido, Rebun Island experiences high latitude and low water temperatures, resulting in slower sea urchin growth. This allows for a particularly high concentration of sweet-tasting amino acids (taurine, glutamic acid). Rebun Island's hairy sea urchin is recognized by the Japanese industry as the quality benchmark for Hokkaido, with peak season occurring from July to August annually. Due to limited annual production, wholesale prices are typically 20-35% higher than other origins, making it ideal for premium Japanese cuisine restaurants or five-star hotel signature dishes.
Shakotan Peninsula
Shakotan Peninsula is renowned for "Shakotan Blue," where its crystal-clear waters nurture fishing grounds with exceptionally high sea urchin density. Shakotan's purple sea urchin opens the season in early June, making it the earliest Hokkaido sea urchin supplied to the Macau market during summer. With consistent quality and uniform color, it offers the most突出的性价比 among the three major producing regions, making it an ideal choice for bulk procurement.
Rishiri Island
Rishiri Island is famous for Rishiri kombu (kelp), and its sea urchins feed on kombu, creating a distinctive kelp umami character that is highly recognizable among sea urchin enthusiasts. Rishiri's hairy sea urchin peaks from mid-July to August, and Inari offers limited supply during this optimal harvesting window each year—suitable for restaurants wishing to highlight origin stories on their menus.
IV. Quality Assessment Standards
4. How to Judge Summer Sea Urchin Quality
When procurement staff or head chefs conduct inspections, they can quickly assess quality using these sensory indicators:
- Color: Bright orange-yellow, free of gray-brown spots. Browning typically indicates storage exceeding 48 hours or cold chain interruption.
- Form: Full oval shape, with no sticking or collapse. High summer temperatures accelerate softening, so special attention should be paid to overall firmness during inspection.
- Odor: Fresh ocean scent, free of ammonia or腐败 smell. Alum-treated sea urchins have a slight bitterness, while alum-free varieties offer pure seafood sweetness.
- Temperature: Core temperature should be maintained at 0-2°C during inspection. Inari provides a temperature logger printout with each shipment for instant verification.
5. Macau Restaurant Procurement Process and Timing
Key timeline for 2026 summer sea urchin procurement:
- Late May to early June: Book first shipment of Shikotan purple sea urchin (June opening catch)
- Mid-June: Confirm initial harvest quantity of horse manure sea urchin, lock in July contract
- July: Rebun Island horse manure sea urchin peaks; order two weeks in advance to secure priority allocation
- Mid-July to August: Rishiri Island limited supply window, priority orders for Inari booking clients only
- Late August: Hokkaido summer peak season ends; can book Nemuro or Bekkai autumn-winter transitional sea urchin
Important note: Since additive-free sea urchin has a保鲜期 of only 48-72 hours, Inari operates fixed air freight schedules three times per week (Tuesday, Thursday, Saturday). Restaurants should adjust their ordering rhythm based on their own plating schedules. Supply is limited during summer peak season—it is recommended to confirm orders at least two weeks earlier than usual.
VI. Inari Global Food 2026 Summer Pre-Order
Inari Global Food offers exclusive 2026 Hokkaido uni (sea urchin) summer pre-order services for cooperating restaurants and hotels in Macau:
- Pre-order Opening:Accepting 2026 June-August procurement plan pre-registration starting today
- Priority Customer Benefits:Monthly contract customers enjoy priority allocation rights at origin and fixed price guarantee
- Sample Request:First-time procurement customers can apply for samples (cold chain shipping cost charged)
- Contact:Email inariglobal@gmail.com / Website www.inari.com.mo
Premium Hokkaido uni, from fishing boat to Macau table—48-hour cold chain direct delivery. This is Inari Global Food's commitment to every partner.
常見問題 Frequently Asked Questions
北海道海膽幾月最好食？
The optimal season for Hokkaido sea urchin varies by species. The peak season for Ezo Bafun uni (horse dung sea urchin) runs from June to August annually, with July to August representing the quality peak from Rebun Island and Rishiri Island farms—when the roe is at its fullest and sweetness reaches its highest level. Ezo Murasaki uni (purple sea urchin) achieves its best quality in the first month after the Scabetsu Peninsula harvest opens in early June. Overall, mid-June to mid-August represents the golden window for sourcing premium Hokkaido sea urchin throughout the year.
夏季海膽和冬季海膽有什麼分別？
Summer sea urchin (June–August) benefits from Hokkaido's abundant plankton, resulting in fuller roe, higher fat content, deeper orange color, and peaksweet amino acid concentration—making it the ideal season for sea urchin sashimi. Winter sea urchin (December–February) sees lower water temperatures and reduced plankton, leading to relatively thinner roe, paler yellow coloring, and lower freshness and sweetness. However, certain species like Northern horse dung sea urchin maintain相当 quality. For Macau restaurants featuring sea urchin sashimi or uni rice on their menus, sourcing during the summer peak is recommended.
礼文島和積丹哪裡的海膽更好？
Each region offers distinct advantages depending on procurement needs. Located at Hokkaido's northernmost point, Rebun Island's extremely cold waters and longer growth cycle produce horse dung uni with sweetness and umami amino acid levels recognized by the Japanese industry as Hokkaido's gold standard—ideal for premium Japanese cuisine or five-star hotel signature dishes, though at higher prices with limited supply. The clear waters and abundant plankton of the Scabetsu Peninsula produce stable quality purple uni with excellent value-to-price ratio and relatively ample supply, suitable for restaurants requiring steady large-volume procurement. In summary, choose Rebun Island for追求极致品质, and choose Scabetsu for balanced stability and pricing.
夏季採購海膽需要提前多久訂貨？
Inari Global Foods recommends confirming orders at least two weeks advance during summer peak season, particularly for the limited supplies from Rebun Island and Rishiri Island. First batches of June Scabetsu Purple uni can be pre-registered in late May; July Rebun Island horse dung uni peak requires contract confirmation by mid-June. Inari operates three weekly air cargo flights (Tuesday, Thursday, Saturday), with order cut-off at 6 PM two days prior to delivery. Monthly contract customers receive harvest priority allocation, avoiding the scramble during peak season.
無礬海膽保鮮期有多長？
The shelf life of additive-free sea urchin is 48 to 72 hours—significantly shorter than alum-treated sea urchin (which can last 5–7 days). Additive-free sea urchin retains the purest sweetness and umami, but requires extremely strict cold chain management—maintaining 0–2°C throughout. Inari Global Foods employs direct air freight, typically completing delivery from Hokkaido fishing ports to Macau restaurants within 48 hours, accompanied by cold chain temperature logger printouts for verification upon receipt. Restaurants are advised to use the product on the day of or the day after delivery to ensure optimal flavor and food safety.
