20ml packet of Grog Essence. Make your own Grog!  The traditional Royal Navy sailors drink of the day. A lightly spiced amber rum, flavored with fresh lime juice to keep scurvy away. Instructions: Pour the contents of the packet into a barrel or (750ml) bottle. Fill with 25 fl. oz. (725ml) of 35-40% alc./vol. grain alcohol, neutral vodka or swish alcohol. Shake well to mix thoroughly. Makes 26 fl. oz. (750 mL). Use 1 bottle of essence per liter of alcohol. Age spirits to your taste in an Oak Barrel! Ingredients: Natural extracts, essential oils, propylene glycol and caramel color.