液体与饮品 on a plane

💧 物品分类 · 26 items

This category is ruled by one number: 3.4 oz (100 ml) per container, all fitting in a single quart-size bag — the printed container size counts, not how full it is. Anything bought after security is free of the rule, which is why the empty-water-bottle-and-refill strategy works at every airport, and why duty-free alcohol travels legally in sealed tamper-evident bags. Checked bags change the math entirely: wine under 24% ABV is unlimited, spirits up to 70% are capped at 5 liters, and anything stronger is banned outright. Zamzam water is ordinary water at security — the special 5-liter allowances come from specific airlines, not from TSA or CATSA.