A cordial is concentrated fruit-based syrup. In the undiluted state the syrup is very sweet, so it is designed to be mixed with predominantly with water (for example tap water, bottled water or soda water). It can be diluted in any amount to fit the taste of the consumer, normally at a ratio of one part cordial to four or five parts water. Cordials are popular throughout Australia, and come in a variety of flavours, including orange, lemon, blackcurrant, and lime, but vary according to the market in which they are sold. Cordials may or may not contain juice and/or sugar. Like any beverage, cordials should be used in moderation as part of a balanced diet.

As with other non-alcoholic beverages, cordials provide a daily intake guide which dictates the proper serving size as well as the percent of daily intake the ingredients in the product account for. All cordials will also clearly state the mixing ratio of cordial to water as a recommended concentration.