Old Iron is a roasted oolong tea, and should be brewed with slightly off-the-boil water (around 90 degrees) for roughly 1-2 minutes.
Oolong teas are partly oxidised, and so need a slightly gentler touch when it comes to water temperature - give the kettle a minute to cool before you pour.
As the tea infuses, you'll smell a heady mix of natural vegetal tea leaves, and a deeper roasted taste common to red teas. The liquor will not be green or red - more like a rich yellow colour.
Brew in the teapot or directly in your mug - you'll need around 4g per person, which is a big three finger pinch of dry leaves. Rebrew 3-4 times, lengthening the steeping time slightly each time.