Clarebout Potatoes’ proposed closure of its Mouscron 1 frozen-potato factory in Belgium could affect up to 392 workers. The Simplot-owned processor is restructuring capacity during a volatile period for Europe’s potato and frozen-fries market.

The site, operated by Clarebout subsidiary Mydibel SA, stopped production on 7 September.

Clarebout has started an information and consultation procedure over permanently ending production at the factory. However, no final closure decision has yet been taken.

Clarebout says its frozen-potato production capacity is currently around 14% to 20% above expected demand. The group cited these pressures facing the market:

• Overcapacity
• Stronger competition
• Continuously rising costs

The restructuring matters because Clarebout is a major European frozen-potato manufacturer and an important private-label supplier. Grocery Trade News includes the business in its analysis of the top private label frozen food manufacturers in Europe.

The proposal also comes after J.R. Simplot Company completed its acquisition of Clarebout Potatoes. The deal significantly expanded the US group’s European frozen-potato manufacturing footprint.

Why Mouscron 1 Was Targeted

Mouscron 1 is the smallest production facility within Clarebout’s network. According to the company, the factory runs older equipment than its other sites. This leads to higher production costs per tonne and lower operational efficiency.

Clarebout said the proposed restructuring aims to align its manufacturing footprint with expected market demand. It also aims to strengthen the competitiveness of its remaining sites.

If the proposal goes ahead, production at Mouscron 1 would be gradually phased out. Up to 392 employees could be affected.

The company has said it plans to keep investing in its other production facilities to improve efficiency and product quality. Clarebout and its subsidiaries employ around 3,000 people across Belgium and France.

Simplot Is Reshaping Its European Potato Business

The proposed closure also needs to be seen within the wider restructuring of Europe’s frozen-potato industry. Simplot’s acquisition of Clarebout added substantial European processing capacity. Simplot was already active internationally in frozen potato products and foodservice.

The Mouscron proposal shows that ownership consolidation does not always mean every acquired production line will stay in the long-term manufacturing network.

Individual factories are increasingly judged on:

• Efficiency
• Age
• Operating costs
• Location
• Their role within wider European supply networks

At the same time, major competitor McCain has been investing in its European production operations. That contrast shows that Europe’s frozen-potato sector is not going through a simple industry-wide contraction.

Manufacturers are making different decisions about where future capacity should sit.

Europe’s Potato Supply Picture Has Changed

The timing creates an unusual market situation. Europe entered 2026 after exceptionally heavy potato availability during the previous season. Large crops had contributed to depressed raw-material prices and excess processing capacity.

Conditions have since changed sharply. Severe summer heat and dry weather have affected important potato-growing regions across Europe. These include areas of Belgium, France, Germany and the Netherlands.

For frozen-food manufacturers, the issue is not simply the total number of potatoes harvested. Frozen-fries production needs potatoes that meet specific requirements for:

• Size
• Dry matter
• Processing quality
• Consistency

Heat and too little water can reduce tuber size and alter crop quality. That can leave processors with fewer potatoes suitable for particular finished products. This can happen even when large volumes remain available elsewhere in the market.

Why Overcapacity and Potato Shortages Can Exist Together

For supermarket buyers, a key point is that processing capacity and raw-material availability are different issues.

A manufacturer can have more factory capacity than expected demand requires. At the same time, it can face tighter availability of suitable processing potatoes.

Removing inefficient manufacturing capacity therefore does not necessarily mean Europe has too few frozen-fries factories.

Equally, spare factory capacity does not guarantee plentiful frozen-fries supply. Processors still need enough potatoes that meet their specifications at commercially viable prices.

That distinction is especially important for large private-label programmes.

Retailers need to understand how much manufacturing capacity their suppliers run. They also need to know where their potatoes come from and how exposed those origins are to weather and crop-quality problems.

What It Means for Supermarket Buyers

Clarebout’s Mouscron proposal raises practical questions for European supermarket frozen-food buyers.

Retailers running large private-label frozen-fries programmes may want more visibility over which factories make their products. They may also want to know whether production can move between sites if capacity changes.

What buyers should check

• Potato sourcing: Buyers should monitor contracted raw-material availability, crop quality and size profiles. They should not rely only on headline European production figures.
• Pricing: This could become more important if lower crop availability pushes raw-material costs higher. Processors also continue to face energy, labour, logistics and manufacturing-cost pressures.
• Specification flexibility: This may become especially valuable during difficult growing seasons. Retailers with very narrow requirements for fry length, potato size or finished-product appearance could face greater sourcing pressure if weather reduces the share of suitable potatoes.

Private Label Exposure Matters

Clarebout’s importance to private-label frozen potatoes makes the development especially relevant to grocery retailers. Private-label programmes are generally built around consistent specifications, predictable volumes and tightly controlled pricing.

Changes to manufacturing networks therefore matter even when total group production capacity remains substantial.

Retail buyers should establish three things:

• Whether any products are currently made at Mouscron 1.
• Whether production could move to another Clarebout facility.
• Whether such a transfer would affect lead times, specifications or commercial terms.

Supplier contingency plans are becoming more important as both processing economics and agricultural conditions become more volatile.

Frequently Asked Questions

How many jobs are at risk at Clarebout’s Mouscron 1 factory?

Up to 392 workers could be affected. Clarebout and its subsidiaries employ around 3,000 people across Belgium and France.

Why does Clarebout want to close Mouscron 1?

Mouscron 1 is the smallest site in Clarebout’s network and runs older equipment. Clarebout says its frozen-potato capacity is around 14% to 20% above expected demand.

Has the closure been confirmed?

No. Production stopped on 7 September, but Clarebout says no final closure decision has yet been taken.

Clarebout Closure Is Not Yet Final

The Mouscron 1 closure remains a proposal. Clarebout’s information and consultation procedure gives employee representatives a chance to examine the plan. They can ask questions and explore possible alternatives before a final decision is taken.

The distinction is important. Production has stopped at the site, but Clarebout has not yet described the permanent closure as a completed decision.

For European frozen-food buyers, the wider message is already clear. Processors are reassessing factories after a period of excess manufacturing capacity and intense competition. Meanwhile, extreme weather is making suitable processing potatoes less predictable.

That combination means supermarket buyers increasingly need to assess the resilience of the entire supply chain. This runs from field and contracted crop through to factory capacity and finished private-label product.