Hard seltzer is produced from a sugar-based fermentation that produces a neutral alcohol base that is often flavored with fruit or other aromatics. There are many different strategies for producing hard seltzer depending on the priorities of the brewer. This best practices document covers the following sections: “Choose your strategy”, “choose the sugar source”, “Control the pH”, “Protect the Yeast”, “Feed the yeas with protocol and typical results”, “Optimize the fermentation”, “Filtration, dilution and flavoring”.