It could basically be summarised as:
"Please provide tea making facilities: tea bags, milk, sugar and hot water. If possible a couple of cans of Pepsi (not diet or other brands please) would be appreciated."
Really, the person organising the speech doesn't really care how someone takes their tea or why they don't like Pepsi or what the conditions (which are totally out of their hands) are which will mean you do or don't choose to drink one drink over another. Given that he says he carries his own tea bags (and if he's using them he wouldn't want milk or sugar) the request could be: "Hot water and a cup for making tea - don't worry about providing tea bags, milk or sugar."
It's all quite sweet but really, the excess guff and explanations make it more likely someone will miss something.