Ice tea doesn't have to come from Nestle
You can easily make it yourself. Make a generous amount of strong tea. I use a 1.5 liter pitcher. Especially good are some flavored teas such as "Tigers daydream". Sweeten to taste. Note that as the tea will cool down, it will become more bitter, so a bit of extra sugar is needed.
Cool. enjoy with ice and a twist of lemon. Will stay in the fridge for several days.