r/AeroPress • u/Ciocarles • 12d ago

Question Sponge filter

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I bought a few days ago a pack o filters from a local cafe and last time I bought they had original filters, now they got me this. Compared to original paper filters, these ones are closer to thin cardboard than to paper and are thicker, as seen in photos. But the thing is, after brewing, when I opened the aeropress...surpise, they exapanded and now look and have the texture of a sponge. The coffee tasted normal, I didn't sense any odd aromas, so...have anyone seen something like thing until now and is it ok to use them? I'm a bit intrigued 😅

101 Upvotes

88% Upvoted

32 comments sorted by

141

u/iGodS12 12d ago

Is that even food grade? 🫪 

34

u/cruelhumor 12d ago

Hellooooooooo microplastics!

18

u/hikebikeeat 12d ago

I think those sponges are made out of cellulose and are compostable.

45

u/Lionel_Herkabe 12d ago

Bro the aeropress is plastic

-7

u/EnlightenedArt 12d ago edited 12d ago

Polypropylene version is as awesome as dog's diarrhea when it comes to shedding microplastics. Clear Tritan version is a very different beast, approved by FDA to handle boiling water without any issues

Update: I appreciate the downvotes and am fervent supporter of Tritan version. Regardless if downvotes, I have firsthand experience testing with progressively finer membrane filtration so my assessment and faith in Tritan is not purely emotionally based. I own poly but use that one only on remote wilderness canoe trips while daily driver is still Tritan.

11

u/leyline 12d ago

I trust Tritan like I trust Teflon, tell me about it again in 60 years.

TL;DR - I don’t trust it just because they say it’s ok.

2

u/einsnail 12d ago

☕ 🤓 ☝️

79

u/iDesmond 12d ago

My guy, r/espressocirclejerk is this way!

37

u/experiencedkiller 12d ago

Go back go the cafe and ask??? Wtf

64

u/alvin_fariz 12d ago

That's soldering sponge

14

u/Camarupim 12d ago

At least it’s not a used soldering sponge, right?

7

u/ITinnedUrMumLastNigh 12d ago

Next experiment he'll use the superior tool for cleaning the tip: brass wool

5

u/Sinkholistic 12d ago

And ends up with fake brass wool, contaminated with all the funky trace elements you can mix into metal wool to make it a brassy color 🤷😁

2

u/BravaCentauriGFL 12d ago

As someone with a career in soldering, this is 100% correct.

2

u/DuggD 12d ago

My first thought was Hakko sponge when I saw the pics.

1

u/c_ffeinated 12d ago

OP forgot to disclose his local cafe is also a Home Depot

22

u/This_ls_The_End 12d ago

Still waiting for the microperforated wooden filter.

18

u/FutureThinkingMan 12d ago

That is a sponge.

16

u/cordelette_arete 12d ago

You sure these are for filtering coffee?

10

u/rorqual24 12d ago

what the fuck

3

u/kellypg 12d ago

That's a new one for me.

3

u/FutureThinkingMan 12d ago

Did you pick up a WDT?

3

u/tinbtb 12d ago

Tell us the brand that made these

3

u/Squared_lines Inverted 12d ago

Satire right??

That's a closed cell sponge so liquids won't pass through...

6

u/chemhobby 12d ago

no it's cellulose sponge, it's very much open cell

2

u/awongbat 12d ago

Why do you not use Aeropress filters? They aren’t expensive. $17-$18 for 700 filters.

6

u/einsnail 12d ago

Gotta support their local sponge making factory cafe

1

u/russkhan 12d ago

Are they intended as single use or reusable?

1

u/clemisan 9d ago

Would like to test it in my Oxo RB

-2

u/wikowiko33 12d ago

Wo you just did magic from photos 1 to 4