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 Biscotti Concentrated Flavouring We know that all you really want is a delicious tasting, high quality food grade concentrated flavoring, and thats precisely what we bring you. Biscotti flavor is sure to bring out the crunchy almond taste in your favorite treats. The flavor is unique because of the yummy taste it retains in desserts and pastries