Near the T1 airside gates, 7‑ELEVEN is the cheap refuel point
In T1 after security, regulars hit 7‑ELEVEN first to dodge full airport markups and grab drinks at prices close to what you’d pay in Central. It’s one of the few spots airside selling takeaway water, beer, and snacks without the café surcharge, so people treat it as the last stop before boarding instead of sitting down at the main food court.
This is a standard Hong Kong 7‑ELEVEN line‑up: bottled water under HKD 10, canned drinks and beers, cup noodles, onigiri, sandwiches, and the usual sweets. Several trip reports call out the local soft drinks and instant noodle flavors matching city branches, not the trimmed tourist selection you see at many airports. Figure on grabbing enough for a long‑haul: people specifically mention stocking up here before 12‑ to 15‑hour flights rather than buying on board.
What regulars actually do: buy two waters, a beer, and snacks right after clearing T1 security, then walk to the gate and eat there. Others grab cup noodles or rice balls and use hot water from nearby water stations when lounges are closed after midnight. It’s all post‑security, so you’re fine bringing anything straight onto the plane, even for US or Europe departures.
Watch out around the late‑evening bank, roughly 21:00–00:30, when multiple long‑hauls leave from T1. Flyers report queues snaking into the corridor and half‑empty fridges where the popular drinks should be. If your flight is in that wave, hit 7‑ELEVEN as soon as you enter the departures level, not 20 minutes before boarding.