Traditional semi-sweet meads should not contain any additional ingredients and should have a sweetness level of between 3.5 and 6.5 blg. Ageing in various types of barrels, cubes or flakes is permitted.Traditional semi-sweet honeys should not contain any additional ingredients and should have a sweetness level of between 3.5 and 6.5 blg. Ageing in various types of barrels, cubes or flakes is permitted.