Big Bamboo Irish moss with oats is a vanilla-flavoured Jamaican drink. Big Bamboo blends sugar with sea moss, milk and spices to create an energy-rich drink. In Jamaica, Irish moss is touted as a superfood, loved for its nutritional properties. Carrageenan is an extract of Irish moss, and this natural thickener is what gives Big Bamboo original its thick and creamy texture. To enjoy this drink, shake well and serve over ice.