A new YouGov survey commissioned by Birchall Tea reveals that Brits may not know as much about their daily brew as they think. While 51% of UK adults drink tea daily, 55% are unaware about what many mass-market tea bags containA new YouGov survey commissioned by Birchall Tea reveals that Brits may not know as much about their daily brew as they think. While 51% of UK adults drink tea daily, 55% are unaware about what many mass-market tea bags contain