Miles Lavers started Cornish Stingers nettle beer two years ago. But recently he was hit with a £9k beer duty bill because his brew does not contain malt and therefore can’t be classed as a beer by the HMRC. So now Lavers is being charged the duty rate of wine. he will add 10p onto every £2.50 bottle of nettle beer. The beer is made using a centuries-old recipe. It is wheat and gluten free.