If you're starting to feel sad about the end of summer, Founders Brewing can help turn that frown upside down.

This week the Grand Rapids-based brewery is releasing the fourth beer in the company's barrel-aged series. The latest release is called Underground Mountain Brown and is a combination of beer and coffee. It officially goes on sale Friday, August 16.

Last month, Founders announced they would be distributing to Hawaii, successfully completing distribution to all 50 states.

RELATED: Founders Brewing to distribute to Hawaii


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