Winter is the busiest season on the coffee calendar. Here are five stops worth planning around.

1. Helsinki, November

The Northern Lights Barista Open opens the season. Expect sharp espresso and long queues.

2. Addis Ababa, November

The Highland Origins Expo brings farmers, exporters and buyers together. It is the best place to taste fresh-crop Ethiopian lots.

3. Portland, December

The Pacific Brew Festival is relaxed and local. Roasters pour, bakers sell and bands play.

4. London, January

The Café Futures Summit focuses on business. Talks cover rents, staff and the cost of milk.

5. Seoul, March

The World Brewers Cup Qualifier closes the run. Watch for new methods and new filter papers.

Dates and links are on our events page.