Belgian Fries Under Threat as Extreme Heat Shrinks Potato Crop

Belgium’s famous fries could face a supply squeeze after extreme weather left this year’s potato crop unusually small, raising concerns over tighter supplies and potentially higher prices for processors, fry shops and consumers.

Belgian potato farmers are reporting severe problems in the fields as exceptionally hot and dry summer conditions have prevented potatoes from developing to their normal size. The situation is particularly concerning for the country’s processing industry, which relies heavily on large, elongated potatoes suitable for producing frozen fries.

Potatoes Too Small for Fries

In Amay, near the eastern Belgian city of Liège, farmer Mathieu Comijn is harvesting Bintje potatoes from extremely dry soil. Some potatoes are barely the size of ping-pong balls, far below the size normally required for efficient fry production.

Mathieu Comijn, Belgian potato farmer:

"You can see the soil is extremely dry. Normally, they should be at least four times this size. At the moment we can't make fries with these potatoes."

The difficult growing conditions followed a challenging spring. Heavy rain and storms at the end of spring weakened the soil, while exceptionally hot and dry summer weather created further stress for potato crops. 

The combination has severely affected tuber development, leaving farmers with smaller-than-usual potatoes at harvest.

Farmers Face Pressure to Meet Processing Contracts

The impact is particularly significant for growers supplying Belgium’s large potato-processing sector. 

The Comijn family farms around 500 hectares of potatoes and has contracts requiring it to deliver agreed volumes to processors. With this year’s crop struggling, the family plans to draw on stocks from last year’s unusually abundant harvest to help meet some of its contractual commitments.

However, relying on existing stocks may provide only temporary relief if the smaller harvest results in a sustained reduction in available processing potatoes.

Belgium’s Global Frozen Fries Industry at Risk

The potential shortage matters well beyond Belgian farms. 

Belgium is the world’s biggest exporter of frozen fries, while its potato-processing industry handles more than six million tonnes of potatoes annually. Around 90% of the frozen fries produced in Belgium are exported to more than 120 markets worldwide. 

Any significant reduction in suitable processing potatoes could therefore have implications for the wider global frozen fries supply chain.

Processors require potatoes of the right size and shape to produce the long, consistent fries demanded by consumers and food-service customers. Smaller potatoes can reduce processing efficiency and may not meet the specifications required for fry production.

Fry Shops Struggle to Find the Right Potatoes

The challenges are also being noticed by Belgium’s famous fry shops.

At Maison Antoine, a well-known fry kiosk in Brussels, owner Pascal Willaert explained that large, elongated potatoes are ideal for making fries.

Pascal Willaert, owner of Maison Antoine, a renowned Brussels fry kiosk:

"But right now, with the seasons varying so wildly, it's hard to find the perfect potato for fries."

His comments highlight a growing challenge for Belgium’s traditional fry sector: it is not only the overall quantity of potatoes that matters, but also whether the harvested crop meets the size and quality requirements needed to produce the country’s signature fries.

Tighter Supplies Could Push Prices Higher

Belgium’s national association of fry vendors, which represents around 4,500 shops, has warned that tighter potato supplies could eventually push prices higher. 

If farmers harvest fewer suitable potatoes, processors and fry shops could face increased competition for available supplies. Rising costs could ultimately be passed on to consumers through higher prices for fries. 

For Belgium, where fries are deeply embedded in the country’s food culture and represent a major export product, the situation highlights the growing impact of extreme weather on the potato sector.

Extreme Weather Creates New Risks for Potato Farmers

This year’s difficult harvest demonstrates how rapidly changing weather conditions can affect potato production. Heavy rainfall and storms followed by extreme heat and drought can create particularly challenging growing conditions.

For farmers like Comijn, the immediate challenge is making the most of a crop that has struggled to develop.

The Comijn family’s decision to use stocks from last year’s abundant harvest could help it meet some processor commitments, but the situation illustrates the wider uncertainty facing the industry.

With potatoes significantly smaller than normal, Belgium’s position as the world’s leading frozen fries exporter could face another test. If supplies of suitable processing potatoes tighten further, the impact could eventually reach processors, fry shops and consumers around the world.