Gold Peak has 50 grams of High Fructose corn syrup (garbage) per 12 ounce serving. That's more than a Coke.
I do sun tea and put a splash of "Simply Lemonade" brand in there. Ends up being < 10gms and it's real juice, sugar in 20 ounces.
You must have it mixed up with a different tea. Gold Peak has 36g per serving and the ingredients are: Ingredients: BREWED TEA (FILTERED WATER, BLACK TEA LEAVES), SUGAR, LEMON JUICE FROM CONCENTRATE, CITRIC ACID, NATURAL FLAVORS.
But back to the thread topic - I have never had any other drink cause this problem so it's fair to blame this specific drink. I've had coffee, cola, spiced black tea, seltzer water and many other drinks while smoking a pipe and had no issues.