Iced tea is the restaurant industry's single most profitable product (hint: there's a lot of water in it). As temperatures rise, remind customers that they can enjoy many of their favorite teas over ice for refreshingly different beverages. Use thermal carafes to keep the iced tea cold.

Popular varieties include:

• Classic strong breakfast tea
• Herbal and fruit tisanes
• Spiced combinations
• Seltzer spritzers
• Lattes