终于学会了火腿肠的正确打开方式！别再用牙咬了|with|封口|微波炉|火腿肠|猪肉|肠衣

你每天吃的火腿肠，顶端的铝环可不是“装饰”！它不仅藏着食品包装的核心逻辑，还关联着安全隐患和实用技巧。

The small aluminum ring at the tip of a ham sausage is far from decorative — it plays a crucial role in food safety and packaging, while also posing potential household risks.

图源：青春北京

铝环的作用

铝环学名“铝质密封环”，由食品级铝制成。其延展性和可塑性能让肠衣实现严密封口，起到阻氧阻菌、耐高温的作用，且成本低、可回收。表面的氧化铝膜（aluminum oxide film）还能增强耐腐蚀性（corrosion resistance），避免铝与食物直接反应。

Known as an aluminum sealing ring, it is made of food-grade aluminum that creates a tight, heat-resistant seal, blocking oxygen and bacteria. The material is low-cost and recyclable, and a natural oxide layer prevents corrosion and direct contact with the food.

你平时是怎么打开火腿肠的呢？让我们看看网友的说法。

图源：青春北京评论区

如果我们用牙咬开包装，吃掉的铝屑会对身体健康造成威胁吗？其实，少量铝屑会随代谢排出，成年人每周安全摄入量不超过120毫克（基于60公斤体重），偶尔误食无需焦虑。

Online discussions show that consumers open ham sausages in many ways, from tearing and cutting to biting the casing. This has raised concerns about aluminum shavings, but experts say small amounts are typically expelled through metabolism. For adults, the tolerable weekly intake is up to 120 milligrams, meaning occasional accidental ingestion is unlikely to cause harm.

但是，有铝环的火腿肠绝对不可以放在微波炉里加热！未剥皮的火腿肠放入微波炉，铝环会产生电火花，可能引发火灾。

One clear warning remains: ham sausages with aluminum rings should never be heated in a microwave. If the casing is left on, the metal can spark and potentially trigger a fire.