About Us. Proper Beverage Co. is the premier co-manufacturing destination for mid to large-size customers in the ready-to-drink, aluminum-canned beverage industry. With a focus on carbonated beverages, we produce both alcohol and non-alcoholic-based drinks - all while supporting customers throughout the manufacturing process. We strive to manufacture our products ethically, operate our company with integrity, build our relationships upon trust and respect, and provide equitable and reliable goods and services for our customers.