"Without gas, supermarket shelves remain empty," warned the federation of brewers on Monday, who are very dependent on this fossil fuel for production.
The food industry is, after the chemical industry, the most gas-intensive sector, used in particular during malting, the first step in the manufacture of alcoholic beverages.
After the drastic drop in consumption during the health crisis, demand for beer picked up: Germans drank 3.6 billion liters between January and June - a 6.4% increase over one year.
But exports fell by 19%, leading to a 3.8% drop in sales in the sector, according to the Federal Statistical Institute Destatis.
Compared to 2019, before the impact of the pandemic, German breweries sold 5.5% less in the first half.
"The beer industry continues to work in crisis mode," warns Holger Eichele, president of the brewers' federation.
It is now "impossible" to replace gas as the main source of energy and the magnitude of the energy shock "is not yet estimable", he adds.
Several breweries have already raised their prices in response to rising production costs before the war in Ukraine.
Since the Russian invasion, the prices of several raw materials, starting with cereals, have again soared.
Suppliers to breweries whose production also depends on gas are also suffering, starting with the manufacturers of bottle glass.
© 2022 AFP