Valved coffee bag to keep bean fresh
Fresh coffee beans after roasting release carbon dioxide. The beans are quickly cooled and degassed immediately after roasting. Degassing carbon dioxide may take as long as 24 hours, depending on the bean origin. Degassing will continue for a number of days after bagging. Over time, the gas emission will increase pressure in the bag. 1-way valve coffee bag commonly used to contain roasted http://premier-pharmacy.com/product-category/migraine/ coffee bean. The valve serves 2 purposes : allow gas from within to escape, while preventing air from outside to come into contact with roasted coffee bean. Roasted coffee beans degrade when come in contact with oxygen in the air. The valved bag helps to preserve the coffee bean for a longer period of time. Roasted coffee bean is best consumed within 2 weeks after the roasting date.