Flavor West flavour concentrates are Naturally and Artificially Flavoured. Made in the USA & Rebottled by Vapour Depot in the UK. Available Sizes: 10ml, 30ml, 100ml Recommended Mix (Single Flavour): 15% Recommended Mix (Multiple Flavour Recipe): 5% Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. FW Black Tea Concentrated Flavouring We know that all you really want is a delicious tasting, high quality food grade concentrated flavouring, and that’s precisely what we bring you. Black tea flavour rich profile can either be sweet or savoury which makes it one of a kind flavour.