Northland Vapor Concentrates are designed for vapers who love to mix their own e Liquid but still want to enjoy to amazing flavours Northland Vapor have to offer. Flavour Profile: Mint, Chocolate, Ice Cream Recommended Mix Percentage: 20% Recommended Steep Time: 10 Days Requires mixing with Vegetable Glycerin & Propylene Glycol before can be vaped. Northland Vapor Mint Chip Concentrate formerly known as Tundra. A refreshing take on Mint Chocolate Chip ice cream, or the yummy after-dinner mint chocolates.