“The fish we always order suddenly jumped in price.” “Wholesale prices are so high that we can't make a profit at this rate.”

For restaurants serving fish, such issues can arise unexpectedly due to weather conditions or fluctuating catches. Wild-caught fish in particular can see sharp market swings over short periods, and it is not always possible to immediately pass rising procurement costs on to menu prices.

In times like these, the key is knowing where to make adjustments—across purchasing, kitchen prep, and menu planning—without compromising on quality. In this article, we explain the steps restaurants should take when fish prices soar, accompanied by concrete calculation examples.

When Fish Prices Spike, What Should You Check First?

When fish purchasing prices rise, the first things to assess are the margin of increase and the impact on dish profitability. Even if a wholesale price goes up by 20%, the impact may be limited if you only use a small amount. Conversely, if a staple fish used in high volumes increases in price, the hit to your bottom line will be substantial.

1. Which fish went up, and by how much: Compare using the same size and processing specification

2. How much of that fish you use each month: Understand your usage volume and the number of portions served

3. How much your profit will decrease: Calculate the cost increase per portion

For example, if the cost of fish in a single dish rises from ¥400 to ¥500, the increase is ¥100. For a dish served 300 times a month, assuming menu price and sales volume remain unchanged, your monthly fish expenditure will increase by ¥30,000. It is crucial to determine your course of action only after grasping these concrete figures.

5 Strategies to Consider When Fish Prices Surge

1. Check with Suppliers on the Reason for the Price Rise and the Outlook

If prices rise abruptly, start by checking the situation with your supplier.

• Is it a temporary catch decline due to stormy seas (shike) or bad weather?

• Is the spike limited to specific sizes or origins?

• What is the outlook for upcoming arrival volumes?

• Are alternative specifications or species available?

If demand is concentrated on a specific weight bracket, shifting to a different size that works for your dish can open up new options. However, because market trends are difficult to forecast, it is also important not to postpone purchasing decisions based on the assumption that prices will drop.

2. Look for Processing Specifications That Maintain Culinary Quality

Before switching fish species, another approach is to review sizes and processing specifications. Switching from round (whole) fish to pre-processed fillets might mean a higher price per kilogram, but factoring in yield (edible portion ratio) and prep time can actually lower your total cost. Conversely, for restaurants that make full use of heads and bones for stock or other dishes, whole fish may remain the better option.

Rather than simply searching for cheaper fish, it is vital to compare the total cost required to produce a single dish.

3. Leverage Menu Items Where Species Can Be Flexible

Dishes such as “Today’s Grilled Fish” or “Pan-Seared Seasonal Fish” make it easy to adapt species based on market conditions and arrivals. On the other hand, signature items where the species itself defines the dish's value—such as “Salt-Grilled Nodoguro (Blackthroat Seaperch)” or “Crispy-Scaled Tilefish (Matsukasa-yaki)”—cannot be changed lightly.

When using alternative species, always check flavor, texture, and cooking suitability, while paying close attention to menu labeling and allergen information. Combining fixed-species dishes with flexibly swappable ones gives your restaurant the resilience to weather price increases.

4. Utilize Frozen Fish and Pre-Secured Inventory

Properly handled frozen fish and pre-secured inventory can provide effective alternatives. By procuring seafood during periods when quality and price are optimal, and using fish processed and blast-frozen right at the source, you can build menus without being at the mercy of day-to-day market volatility.

However, frozen fish is not automatically cheaper. Costs vary depending on pre-freezing quality, processing state, storage conditions, post-thaw yield, and shipping fees. Blast freezing is an effective technology for preventing quality loss, but it does not unconditionally guarantee freshness or culinary quality. Be sure to run thawing and cooking tests with samples before committing to purchases.

5. Re-evaluate Menu Prices and Serving Methods

If reviewing procurement and preparation methods is not enough to absorb rising costs, revising menu prices should be considered. However, this does not mean simply passing the exact percentage increase of the fish directly onto the menu price. It is essential to look at the overall food cost of the dish and the gross margin you need to secure.

• Offer high-end fish dishes in limited daily quantities

• Switch the dish into a daily special format

• Balance the course composition as a whole

• Adjust prices while clearly communicating the value of the dish

Simply reducing portion sizes or downgrading quality risks damaging guest satisfaction. Maintaining the dish’s appeal should always be the priority.

How Much Does Fish Inflation Impact Profits? A Concrete Calculation Example

Let’s calculate how an increase in wholesale fish prices affects the profit per portion.

*All figures are hypothetical examples. Labor, rent, and utility costs are not included.

In this example, an increase of ¥150 in fish cost pushes the food cost percentage up by approximately 8.3 percentage points, from 38.9% to 47.2%. If you sell 200 portions a month, assuming prices and sales volume remain unchanged, food costs increase by ¥30,000 per month, directly reducing your gross margin by the same amount.

It is important to evaluate the impact not just on the single fish item that went up, but on your restaurant's overall sales and bottom line. Prioritize countermeasures starting with high-volume dishes that have the biggest effect on profitability.

Differentiate Your Approach: Temporary vs. Prolonged Price Surges

Since it is difficult to predict when high prices will settle down, establishing trigger rules in advance can be very helpful. For instance, setting a guideline such as “recalculate dish costing if fish cost increases by ¥100 or more per portion” gives your restaurant a clear standard to act upon.

3 Pitfalls to Avoid When Fish Prices Surge

When prices spike sharply, it is tempting to focus solely on immediate cost-cutting. However, beware of the following reactions:

1. Switching Suppliers Solely Based on Price

Even if the price is low, inconsistent quality, size, or yield can ultimately drive up your actual food costs.

2. Bulk Buying More Than You Can Use

Securing a lower unit price won't help your bottom line if slow-moving inventory and spoilage losses end up increasing.

3. Making Changes Without Thoroughly Verifying Culinary Quality

When switching fish species or processing specifications, always test for taste, texture, and cooking performance. Any decline in dish quality will directly affect guest satisfaction. During price hikes, it is all the more essential not to judge solely by immediate price tags.

Frequently Asked Questions (FAQ)

Q. What should we do first if fish prices surge abruptly?

First, consult your supplier to understand the cause and supply outlook, and gauge the exact price increase for identical specifications. Then calculate the impact on usage volume and cost per portion to determine which dishes need priority attention.

Q. When fresh fish is expensive, should we switch to frozen fish?

Frozen fish can be an effective alternative, but it is not necessarily cheaper. Weigh your decision by comparing wholesale prices, processing cuts, thawed yield, shipping costs, and final culinary quality.

Q. Should we pass the fish price increase onto our menu prices?

The decision depends on whether the cost increase is temporary or prolonged. While some surges can be absorbed through specification adjustments or menu tweaks, if the impact on profitability is substantial, you should consider revising menu prices while communicating and preserving the value of the dish.

Summary: When Fish Prices Rise, First Assess the Impact on Profit

A sudden jump in fish prices doesn't necessarily call for immediate changes to your suppliers or menus. First, clarify the price increase and usage volume to determine the real impact on food costs and margins. From there, implement a balanced combination of adjusting processing specifications, exploring alternative species or frozen fish, adjusting menu composition, and reviewing selling prices. When seafood prices surge, making well-reasoned decisions that protect both quality and profitability is key.

Making Seafood Sourcing Simpler.

At FINE ATLAS, we are building a new procurement system that seamlessly connects sourcing at origin, processing, blast freezing, cold-chain transport, thawing, prep, and delivery.

By leveraging proper processing at the docks and cutting-edge freezing technology, we help make seafood procurement and food cost control more predictable. Our mission is to deliver the fish you need, in the exact quantities required, in formats tailored for professional kitchens.

If you have concerns about seafood quality, processing specifications, or reliable, continuous sourcing, please contact FINE ATLAS.

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