Prairie Mushrooms is one of Canada's largest growers of Portabella mushrooms. Portabella mushrooms were first made popular by fine dining establishments, but have quickly made their way into all aspects of the foodservice and retail industry, and ultimately on your dinner table. Prairie Mushrooms adheres to the highest quality standards in the production of Portabella mushrooms. Portabella mushroom quality is an ongoing test in patience and the vigorous pursuit of the thick-est, most nutritious mushroom caps. Prairie Mushrooms greatest strength rests in the fact it focuses on mushroom quality, not quantity. Its a reputation that has taken the Prairie name beyond its home in Sherwood Park, Alberta to international markets. When purchasing Portabella mushrooms, consumers should look for a thick, unbroken cap with even circumference and light tan to chocolate colouring. Portabella mushrooms have a shelf-life of 10-14 days. To keep Portabellas fresh, store in a paper bag inside your refrigerator.