Simply heat water in a pan, add tea bags and pour the cooled tea into bottles. With this simple method, you can even determine the desired strength of the tea and the flavoring with lemon, orange, peach, etc. yourself. Making your own tea is tastier, right on trend and much cheaper. It also reduces the amount of energy needed to produce the packaging, which unfortunately usually ends up in the bin after being drunk. Homemade tea is cool because you have a better product, save money and protect the environment. What more could you want? Perhaps a drinking straw?
Sali GroovyCH, yes, an unsweetened ice tea is available in Migros! It is the cult Ice Tea unsweetened. It's probably only available in larger stores. https://migipedia.migros.ch/en/120299000000 Greetings from the Emperor