Add exciting natural flavouring to your beer! Derived from natural ingredients, Mangrove Jack's Natural Flavour Boosts allow you to add a new element of flavour to your beer. Create a huge range of unique beer creations with fantastic flavours to experiment with! American Oak has a subtle oak aroma with sweet woody notes and light smoky undertones. Great for Imperial Stouts, Old Ales and Flanders Red. How it works: With two ways to add Mangrove Jack's Natural Flavour Boosts to your beer, experimentation is easy. Either pour a full bottle of flavouring into your entire batch of beer before bottling or add 1.5 ml of flavouring per bottle before carbonation.