Authorities are stressing that no one needs to hoard. But Danish shops are standing by with canned goods as the Danes are urged to prepare.
On Saturday, the Emergency Management Agency, together with Defence Minister Troels Lund Poulsen (Liberal Party), urged the Danes to have a 72-hour emergency kit.
Unlike Sweden and Norway, Denmark has had no guidelines for emergency preparedness, but the increased risk of extreme weather and threats of cyber attacks has led to a rethink.
Netto had already launched a campaign in May to get the Danes to start preparing and offered canned goods and wet wipes in their advertisements.
At Salling Group, which owns Netto and Føtex, they are now prepared for an increase in demand for water and canned goods.
We are well prepared, and if people follow the authorities' advice and shop as normal, I'm not worried that we'll run out of stock, says CEO Anders Hagh, to Danish TV2.
Coop, which owns the SuperBrugsen and 365discount chains, is keeping an eye on sales, says information manager Jens Juul Nielsen.
Most things we can get in a few days, but we reckon we can manage with the stock we have.