炎炎夏日，一口冰鎮西瓜，甘甜爽口，簡直是消暑利器。

但29日一則“一家三口吃隔夜西瓜患胃腸炎”的新聞沖上熱搜，讓網友心悸不已。

據白鹿視頻報道，陝西西安的圖圖（化名）全家吃了隔夜西瓜後開始惡心、嘔吐、腹瀉，父母因為胃腸炎住進了當地醫院，圖圖不僅出現胃腸炎表現，還出現貧血、無尿、腎功能衰竭，趕緊來到西安兒童醫院腎髒科進行血液透析，血漿置換治療。

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，“隔夜冰西瓜一口吃下8400個細菌”的消息也曾引起網友關注。

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

那麼冰西瓜到底能不能吃？怎麼吃才安全呢？

隔夜冰西瓜一口吃下8400個細菌？

其實西瓜是否隔夜并不是主要問題，關鍵在于是否有緻病菌。

一個好的、完整的西瓜，内部基本上是無菌的。但切開的西瓜沒有了瓜皮的保護，就算是放在冰箱中冷藏，菌落數也依然會上升。

央視《健康之路》中的一個實驗顯示，實驗人員分别用普通切肉的菜刀和專用刀闆分别切取西瓜，封上保鮮膜隔夜保存後檢測西瓜面，得到了差異巨大的數據。

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.

用專門的砧闆和菜刀切取的西瓜，每25g西瓜中檢測出45個細菌。而切肉菜刀處理過的西瓜，每25g西瓜中竟檢測出8400個細菌。

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，如果使用幹淨的刀具、砧闆切瓜，且及時用幹淨的保鮮膜包裹并放入冰箱，就不容易有緻病菌，即使隔夜也能吃。

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

還有網友表示，可以将隔夜冰西瓜表面切去一層再吃，這樣就不會把細菌吃到肚子裡了。

對此醫生表示，這種方法也會存在一定安全隐患。

如果沒有被緻病菌污染，即使不切掉表層，也完全是可以放心吃的。但如果已經被緻病菌污染了，即使你切掉西瓜表層，還是可能使人生病。

怎樣安全吃瓜？

最後，送上一些衛生小Tips，讓你大夏天安全吃瓜。

❶ 對于完整的西瓜，食用前用冷水清洗，去除泥土和殘留，再用幹淨的布或紙巾擦拭幹淨。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 對于市面上預切的或包裝好的西瓜，選擇冷藏或置于冰塊中的産品。When buying pre-cut or packaged watermelon, choose only those refrigerated or surrounded by ice.

❸ 切瓜時，用專用切水果的幹淨的刀和砧闆，尤其不能用切過生肉的刀直接切西瓜。Cut watermelons with clean knives.

❹ 常溫儲存勿超3小時。高溫環境下，無論是否貼保鮮膜，6小時左右就會滋生大量細菌，3小時以内細菌滋生量少，最好現切現吃。Don't let watermelon pieces sit out at room temperature for longer than three hours.

❺ 包上保鮮膜：保鮮膜能夠把西瓜和冰箱中的其他食物隔離開，避免二次污染，并及時放冰箱。For cut watermelons, wrap tightly in plastic, or in an airtight container and refrigerate.

❻ 别隔天：西瓜在冰箱裡的冷藏時間，最好不要超過12小時，最長不要超過24小時。To be eaten within 24 hours (the sooner you eat it, the better!)

❼ 不讓冰箱成為細菌的“天堂”，将冷藏室進行分區，生熟食物分開存放。最好能一個月清洗一次冰箱。Keep fresh produce separate from raw meat, poultry, and seafood products.

最後，更推薦大家買小一點的瓜，盡量一次吃完哦！

編輯：左卓來源：白鹿視頻 央視财經 上海新聞廣播

來源：中國日報網