BESO Biological Research is offering a FREE Q-CAN Plus Fermented Soy Nutritional Beverage Sample. To get your FREEBIE, Click on Freebie Link and scroll down website to fill out the form. While supplies last. Q-CAN Plus is a fermented soybean beverage that is made with real USDA certified Organic Soybeans. The fermentation process breaks down beneficial soybean nutrients into a nutritious beverage and a part of a balanced diet.