OneLemon is a bubble tea shop on Main South Road in Darfield, Selwyn, and a perfect 5.0 rating from three Google reviews suggests the locals have taken it to heart. Good bubble tea stands or falls on the tapioca: pearls cooked in batches through the day should be springy and faintly sweet, never hard in the middle or stuck together, and it's fair to ask when the latest lot went in. Sugar and ice levels are usually adjustable, so newcomers do well to start at half sweetness and work up. Milk teas need a strongly brewed base to carry the creaminess, while fruit teas are the lighter, more refreshing pick on a hot afternoon. If in doubt, a classic pearl milk tea is the benchmark order, showing quickly whether a shop has the basics right. On the western edge of the Canterbury Plains, OneLemon gives Darfield a good excuse to stop for something cold and chewy.