# 咖啡机的隐患

Espresso Machines Brew a Microbiome of Their Own

What’s the lively as liveliest part of your kitchen, in terms of harboring bacteria? Is it the cutting board, ? The dish bunch, sponge? Or maybe your coffee maker. coffeemaker? Because even though caffeine has antibacterial effects, it turns out that espresso machines can harbor a whole menagerie of bacteria , - including some pathogenic species , more commonly associated with the toilet.

Researchers sampled ten Nespresso brand espresso machines. , zeroing in on an the drip trays, which catch those last drops of bround brown gold after a brew. They found that 9 nine of 10 the ten machines harbored residues rich in Enterococcus bacteria, a typical marker of human feagle fecal contamination. And another typical common resident was Pseudomonas , - which have has both benign and pathogenic strains. Pseudomonas appears to thrives thrive in the presents presence of caffeine, and even breaks it down. Which suggest suggests the bugs might be put to work , decaffeinating coffee, or cleaning caffeine residues from our water wayswaterways. The findings appear in the journal of Scientific Reports.

As for your next espresso shot, ? Don’t worry too much. The researchers did not find any bacteria in the coffee pots pods themselves . - so they say our fingertips might be the to blame for spreading the single soles than datasingle-celled invaders. And they write that it’s absolutely not the case that espresso Nespresso machines are dangerous for human health. Just wash the drip tray more often with soap and water. , just as you would any other food-contaminated surface. So that the only thing that is brewing in your espresso machine , is your coffee.

• Words worth to be remembered:
• menagerie n. 动物园,动物展览
• pathogenic adj. 使生病的,成为病原的,病原性的
• zero in 瞄准具校正，调整归零
• residue n. 剩余物；残留物；残余，残渣
• enterococcus 肠道球菌; 肠球菌
• fecal adj. 排泄物的,渣滓的
• pseudomonas 假单胞菌属; 假单胞细菌属
• pod n. 豆荚，蚕茧 v. 从豆荚中剥出；结豆荚

## 譯文：

• “()”中的是我認爲正確的翻譯
• 黑體字是我認爲翻譯得好的部分

##### Chaochen Wang 王　超辰
###### Assistant Professor

All models are wrong, but some are useful.