My teabag is labelled “Lemon ginger” and does not specify herbal revive as the produce line. But it is by Twinnings and was purchased several years ago directly from the Twinnings store in London. I’m not 100% sure this is the exact same blend as the listing.
I put this in a large water bottle (~750 mL) with cold filtered water and just left the teabag in for several refills of water. It can flavour about 2L of water, which is very impressive. It tastes a bit like a lemonade but without the sweetness. I did not find it overly sour, since it was coldbrewed. I’ve had this brewed hot and it steeps too sour and tart. But cold it makes a lovely iced tea (even if you don’t have any ice). The ginger could be a bit stronger but overall it is balanced. I can also taste what I think is lemongrass. It might just be the lemon zest with other herbs but either way it is very tasty.
Flavors: Citrus, Ginger, Herbs, Lemon