Complex sentence: Premier Foods claim that a cup of Typhoo is drunk every 90 seconds in... that's 2.9 million cups of Typhoo made each year in the UK... or 23 million packets sold annually.
Split into simpler sentences: Premier Foods claim that a cup of Typhoo is drunk every 90 seconds. That's 2.9 million cups of Typhoo made each year in the UK, or 23 million packets sold annually.