炎炎夏日，一口冰镇西瓜，甘甜爽口，简直就是消暑的利器。

但29日，一则“一家三口隔夜吃西瓜患胃肠炎”的消息冲上热搜，让网友心悸不已。

据白鹿视频报道，陕西西安图图（笔名）全家吃了一夜西瓜开始恶心、呕吐、腹泻，父母因胃肠炎住在当地医院，图图不仅出现胃肠炎，还出现贫血、无尿、肾衰竭，迅速来到西安儿童医院肾科进行血液透析、血浆置换治疗。

A family of three in Xi'an, Northwest China's Shaanxi province, has been diagnosed with gastroenteritis after consuming watermelon placed overnight in the fridge, all developing symptoms such as nausea, vomiting and diarrhea, according to Bailu Video on Tuesday. The child was even rushed to Xi'an Children's Hospital to deal with severe conditions of kidney failure.

此前，“隔夜吃8400个冰西瓜细菌”的消息也引起了网友的关注。

Is it safe to eat refrigerated watermelon? The topic has once again taken over social media platforms.

那冰西瓜到底能不能吃呢？怎样吃才安全？

一夜冰西瓜一口吃8400个细菌？

事实上，西瓜是否隔夜并不是主要问题，关键在于是否有致病菌。

一个好的、完整的西瓜，内部基本上是无菌的。但如果没有瓜皮的保护，即使在冰箱里冷藏，菌落数量也会增加。

央视《健康之路》中的一项实验表明，实验者用普通切肉的菜刀和专用刀板切西瓜，隔夜密封保鲜膜，检测西瓜面，获得了巨大差异的数据。

According to a study on bacteria formed in watermelon overnight, the researchers cut the watermelon with clean, specialized knives and household butcher knives. Pieces of watermelon were divided into experimental and control groups. After that, the watermelon was wrapped in cling film to preserve freshness and placed in the refrigerator for 24 hours.

每25克西瓜检测到45个细菌，用专用砧板和菜刀切割的西瓜。每25克西瓜检测到8400个细菌。

The results showed that watermelons cut with special knives contained only 45 bacteria per 25 grams, while watermelons cut with household knives contained 8400 bacteria per 25 grams.

研究表明，如果用干净的刀具和砧板切瓜，及时用干净的保鲜膜包裹放入冰箱，即使一夜之间也不容易有致病菌。

This experiment proved that watermelons cut with clean knives will not form deadly bacteria when stored in the refrigerator.

有网友表示，隔夜冰西瓜表面可以切一层再吃，这样细菌就不会吃进肚子里了。

医生说，这种方法也会有一定的安全风险。

如果你没有被致病菌污染，即使你不切掉表面，你也可以放心吃。但如果你被致病菌污染了，即使你切掉西瓜的表面，你仍然可能生病。

如何安全吃瓜？

最后，送一些卫生小贴士，让你在夏天安全吃瓜。

❶ 对于完整的西瓜，食用前用冷水清洗，去除土壤和残留物，然后用干净的布或纸巾擦拭。For whole watermelons, run cold water over watermelon. Wipe the outside to remove any dirt or residue and pat with a clean, dry towel or paper towels.

❷ 对于市场上预切或包装好的西瓜，选择冷藏或放入冰中的产品。When buying pre-cut or packaged watermelon, choose only those refrigerated or surrounded by ice.

❸ 切瓜时，用干净的刀和砧板切水果，尤其是切生肉的刀。Cut watermelons with clean knives.

❹ 室温储存时间不得超过3小时。在高温环境下，无论是否粘贴塑料薄膜，大量细菌都会在大约6小时内繁殖，细菌在3小时内繁殖较少。最好现切现吃。Don't let watermelon pieces sit out at room temperature for longer than three hours.

❺ 包装保鲜膜：保鲜膜可将西瓜与冰箱内的其它食物隔离，避免二次污染，并及时放入冰箱。For cut watermelons, wrap tightly in plastic, or in an airtight container and refrigerate.

❻ 第二天：冰箱里西瓜的冷藏时间最好不要超过12小时，最长不要超过24小时。To be eaten within 24 hours (the sooner you eat it, the better!)

❼ 不要让冰箱成为细菌的“天堂”，把冰箱分开，把生熟的食物分开存放。最好每月清洗一次冰箱。Keep fresh produce separate from raw meat, poultry, and seafood products.

最后，建议你买小一点的瓜，尽量一次吃！

编辑：左卓来源：白鹿视频： 央视财经 上海新闻广播

来源：中国日报网