Actually, I am a big tea drinker and have some serious thermoses. What I have found is that putting brewed, “treated” (w/milk & sugar) tea into the metal vacuum-sealed thermoses makes it taste a little strange– my theory is that the tea & dairy reacts with the material in the thermos. If you don’t have this problem, no worries, but I would measure how many cups of tea you can get from your thermos, then add enough sugar to the hot water so that each cup has enough sugar. I would add the milk to the cup after it’s poured from the thermos. Experiement, see if yours reacts this way and if not, I would see which ways it works.

do u have a regular cup? if you do, pour it from the cup after you make it… if not, put the tea bag in the thermos and add the hot water. add the sugar and kinda swirl your cup. then add the milk and swirl again….enjoy!

When the water is hot …you dont have to worry about sugar cos it will mix up itself. well i think that u should add milk and sugar when u r serving it or having it. my suggestion is this as i also love it this way. this way is also easy for u. hope this help.

Make the tea in your normal cup the way you always do and then pour it into the flask by using a funnel.

If you don’t have a funnel, use one of the plastic coffee cones and let it drain in.