Vapetasia Killer Kustard Blueberry E Liquid 50ml Bottle Killer Kustard Blueberry is a signature creamy custard flavour with a blend of fresh blueberry notes. You will receive a 60ml bottle, filled with 50ml Nicotine Free Blueberry e liquid. You also have the option to purchase it along with a 10ml Nicotine shot. Mixing the Nicotine shot into the Blueberry e liquid will make it 3mg. Negating the need to purchase the pre-mixed 10ml bottles. Important Notice: Do not use the nicotine shot on its own - only to be used when mixed with the eliquid provided.