终于学会了火腿肠的正确打开方式！别再用牙咬了

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.

五种便捷打开法

①撕封口线法：找到包装上的虚线，顺着纹路撕拉，轻松开袋无残留。

Tear the sealing line: Follow the dotted or perforated line for a clean opening.

②环下对剪法：用剪刀在铝环下方横向剪断，避免剪到铝环产生铝屑。

Cut below the ring: Use scissors to cut just beneath the aluminum ring, avoiding the metal.

③戳洞撕拉法：用牙签或叉子在铝环下方戳一个小孔，顺着洞口撕拉即可。

Poke and tear: Pierce a small hole below the ring with a toothpick or fork, then tear open.

④对折戳破法：将火腿肠顶端对折，用力按压使铝环处破裂，再顺势撕开。

Fold and pierce: Fold the tip and press firmly until the casing breaks, then peel it back.

⑤暴力拧断法：握住铝环下方，顺时针用力拧转，利用压力使肠衣断裂，适合应急场景。

Twist and snap: Twist the casing below the ring until it snaps.

最后，拓展一个英语小知识。在英语中，pork除了指猪肉，还表示“政治恩惠”，即为获得政治上的好处而拨给某一地区的政府资金。

More taxes and more government pork won't help the economy.

增加税收和政府的政治恩惠无助于经济增长。

你都是怎么打开火腿肠的？还有什么新奇的方法吗？欢迎在评论区分享！

来源：外研社 青春北京 科普中国

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