Julmust is a soft drink that is mainly consumed in Sweden around Christmas. During the rest of the year, except Easter, it is usually quite difficult to find in stores, but sometimes it is sold at other times of the year under the name must. During Easter the name is påskmust. The content is the same regardless of the marketing name, although the length of time it is stored before bottling differs; however, the beverage is more closely associated with Christmas, somewhat less with Easter and traditionally not at all with the summer. 45 million litres of julmust are consumed during December, which is around 50% of the total soft drink volume in December and 75% of the total yearly must sales. Must was created by Harry Roberts and his father Robert Roberts in 1910 as a non-alcoholic alternative to beer. The syrup is still made exclusively by Roberts AB in Örebro. The syrup is sold to different soft drink manufacturers that then make the final product in their own way. This means that the must from two different companies doesn't taste the same, even though they are made of the same syrup. Must is made of carbonated water, sugar, hop extract, malt extract, spices, caramel colouring, citric acid, and preservatives. The hops and malt extracts give the must a somewhat root beer-like taste without the sassafras. It can be aged provided it is stored in a glass bottle. Some people buy julmust in December only to store it a year before drinking it. In 2013 a rumour occurred that the EU would ban julmust due to a directive banning the selling of malt beverages containing caramel colouring. The rumour however turned out to be false since julmust is not a fermented beverage and hence not affected by the directive.
In Sweden, julmust outsells Coca-Cola during the Christmas season; in fact, the consumption of Coca-Cola drops by as much as 50% over the holiday. This was quoted as one of the main reasons that The Coca-Cola Company broke away from their contract with the local brewer Pripps and started Coca-Cola Drycker Sverige AB instead. Coca-Cola Drycker Sverige AB produced its own julmust, albeit very slyly with The Coca-Cola Company's name occupying only a small space on the label. Their julmust was never advertised until 2004, when Coca-Cola started marketing their julmust under the brand "Bjäre julmust", but they bought the syrup from Roberts AB. By 2007 the "Bjäre julmust" was only sold at McDonald's restaurants and it had completely disappeared from Coca-Colas range of products by Christmas 2008, only to return for Christmas 2011.
IKEA in the United States, Canada, the United Kingdom, Ireland, the Netherlands, Russia, Hong Kong, Taiwan, Japan, Italy, Australia, Austria, Germany, Hungary and Switzerland sells Dryck Julmust during Christmas, which is a Julmust variant with sweetener instead of sugar. As of 2017 it's called "Vintersaga" Swedish festive drink. It is also sold in Russia, the United Kingdom, Canada, Hungary and Switzerland as Dryck Påskmust at Easter.
Julmust can be found at speciality shops in the United Kingdom and Belgium.
Julmust is also available for purchase in Finland around Christmas. It is considered part of the Christmas dinner by the Swedish speaking minority. It has also found popularity within the rest of the population as well.