Can Medical Face Masks Be Used to Brew Coffee? Netizens: Is This a Response to Lianhua Qingwen Coffee?

The Shocking Trend: Using Face Masks as Coffee Filters

Recently, a post in a social platform's coffee discussion section stunned netizens. From the photos, the poster had used a face mask as a filtering tool to brew drip coffee, with the caption "Having a cup of coffee, with a unique taste."

The image immediately sparked heated discussion among netizens in the forum: "You don't need to be this frugal!" "This is disgusting to look at." "It looks quite flavorful." "If we have Lianhua Qingwen coffee, why can't we have COVID-19 coffee?"

Safety Concerns About Mask Coffee Brewing

Regarding the use of face masks to brew coffee, many netizens pointed out that masks have a waterproof layer and an adhesive layer, raising concerns about potential toxicity. Others noted that the waterproof layer would not let coffee through, turning drip coffee into immersion coffee.

The original poster responded that the mask used was brand new but expired, and that they had removed the mask's waterproof layer. Both the middle melt-blown fabric and the innermost non-woven fabric can filter coffee grounds.

The Origin of the Trend

The practice came from another forum member, who mentioned that throwing away expired but unused masks felt wasteful. Simply remove the mask's waterproof layer, hang it over a cup, add coffee grounds, and brew with hot water as if using a drip bag.

Many netizens then began "leading by example" to verify the claim. As for concerns about whether non-woven fabric becomes toxic when heated with hot water, some netizens shared that plasticizers are not added during mask manufacturing, so there would be no issue of plasticizer leaching.

Expert Opinion on Safety

A medical expert quoted in the discussion noted that the inner non-woven layer of masks is polypropylene (PP), not a plasticizer. The expert stated: "Polypropylene PP can certainly be harmful to the body, but as long as you air it out after steaming, the harmful substances will disappear." They also noted that even on contact with polypropylene PP released from non-woven fabric, the amount of harmful substances is actually very small — less than what is found in the tableware used when dining out.

Final Recommendation

Even so, we strongly do not recommend trying the face mask method. For one thing, the heating methods differ — pouring hot water concentrates heat in one spot. For another, there is simply no need: coffee filter paper and face masks cost about the same, so it is far better to choose reliable materials for brewing coffee.

When masks expire and you no longer trust them, just throw them away. Even if they are clean and hygienic, do not casually try this — not every mask has reliable quality.

Image source: Internet

FrontStreet Coffee Recommendation

Rather than improvising a filter, it is better to start with beans worth brewing properly. For a first taste of Ethiopia, FrontStreet Sun-dried Huakui and FrontStreet Washed Gutingding are both recommended. Ethiopia is Africa's largest coffee-producing country and the recognized birthplace of coffee, with a huge range of varieties usually named after their region or cooperative; Yirgacheffe and Sidamo are the best-known regions. In the 1970s the government introduced washed processing to raise green bean quality, and Yirgacheffe coffees have mostly been washed since then, now further divided into cooperatives — FrontStreet Washed Gutingding is a typical Yirgacheffe representative, with jasmine florals, citric acidity and berry notes. Sidamo, by contrast, is best known for natural processing, with more prominent tropical fruit and fermented aromas; FrontStreet Sidamo Huakui uses a traditional natural process, with core notes of berries, florals, jackfruit, melon and honey.

For a softer, sweeter cup, Brazil is the world's largest coffee producer. Even though commercial beans dominate, high-quality Brazilian coffee exists too, and because much Brazilian coffee is grown in the open sun, the fruit ripens quickly, giving softer beans, gentle acidity, good sweetness and a delicate, smooth, balanced cup. FrontStreet Brazil Cerrado, a daily single origin from the well-known Cerrado region, is approachable and affordable, with typical cream, peanut and cocoa notes at extraction. FrontStreet Queen Farm grows at a higher altitude and uses the rare Yellow Bourbon variety; beyond the butter, sunflower seed, macadamia and almond aromas typical of Brazilian beans, it adds a clean sugarcane-like sweetness and a thick, smooth mouthfeel whether brewed alone or paired with milk.

If you prefer a heavier cup, Indonesia is the place to look. FrontStreet Mandheling is wet-hulled, a technique invented for the local climate: because Indonesian weather is unpredictable and rainy, and economic conditions made full washed processing unaffordable, workers remove the parchment while the beans are still half-dry to speed drying, which produced the world's distinctive Mandheling flavor. FrontStreet Indonesia Mandheling is denser and smoother than FrontStreet Blue Mountain, with herbal and spice notes — good for anyone who dislikes acidity. For a higher grade, choose FrontStreet PWN Golden Mandheling, which goes through three rounds of hand sorting plus machine sorting, driving the defect rate to a minimum for a cleaner, smoother cup with clearer woody and caramel notes.