That is only because it’s not saturated. If you added an ungodly amount of sucrose (and I like it ridiculously sweet but this would be undrinkable), it would recrystalise when chilled. That’s why there’s a controversy here. A saturated solution would recrystallise, but people are pointing out that tea obviously doesn’t do that. That’s simply because no one drinks it saturated. It’s hard to stir in while cold because the rate of dissolution varies as temperature. That’s why there’s some confusing as to thinking it’s about the saturation point. It’s actually below it in both cases (hot and cold). To learn more about that mechanism, read about how reaction rate is affected by temperature.
That is only because it’s not saturated. If you added an ungodly amount of sucrose (and I like it ridiculously sweet but this would be undrinkable), it would recrystalise when chilled. That’s why there’s a controversy here. A saturated solution would recrystallise, but people are pointing out that tea obviously doesn’t do that. That’s simply because no one drinks it saturated. It’s hard to stir in while cold because the rate of dissolution varies as temperature. That’s why there’s some confusing as to thinking it’s about the saturation point. It’s actually below it in both cases (hot and cold). To learn more about that mechanism, read about how reaction rate is affected by temperature.