Types of Chocolate
The type of chocolate you use—dark, milk or white—depends upon personal preference and the type of event.

• Milk fondue chocolate is a creamy chocolate that is generally well-liked, and therefore a good choice for commercial use where guests' preferences are unknown.
• Dark fondue chocolate is a dark, slightly bitter variety with a rich color that looks great on a buffet and goes well with many fruits. It is high in anti-oxidants. Also, dark chocolate typically contains less dairy product than milk and white chocolates, keeping it from scorching as easily.
• White fondue chocolate is a sweet option that can easily be colored to match the party's theme.

Specially Made Chocolate
The best chocolate to use in your fountain is the kind that is made specifically for chocolate fountains. These varieties do not require any additional oil to reach a proper density, meaning a consistent and great tasting product every time. It does not mean you have to buy the best of the best either; chocolate for fountains is available in different qualities with dark, white and milk to choose from. Generally, these chocolates are made with additional cocoa butter to maintain their smooth texture and rich chocolate flavor.   

Making Your Own Chocolate
Chocolate recipes for fountains are also an option, but not recommended for commercial use since a consistent outcome is difficult to achieve.As a home entertainer, it can be fun to experiment with chocolate recipes of different flavors and cocoa percentages; just make sure to test your recipe’s outcome before relying on it during a gathering.