The event aims to find the world's best jam-maker, with entries from both amateur and professional artisan jam-makers.
There are categories for children and also male jam-makers, with the winners announced on September 6 at the Dundee Flower and Food Festival. Last year's competition attracted 300 entries from as far afield as the US and Singapore.
Organiser Tracey Baxter said: "We want to find the ultimate Jambassadors and are calling on people all over the world to have a go. It's a great way of making the most of our fruit crops."
See www.worldjampionships.com for entry details.