this post was submitted on 30 Aug 2025
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Kind of a rant — I drink water and flavored-water beverages, and I don't wanna buy 24-packs of water and trust my local municipality to recycle. Maybe they do, maybe they don't. Either way, it's not recycle, it's "reduce, reuse, recycle." I'll drink a Gatorade (Zero) and reuse it a few times and then toss it.

But if I want a reusable bottle — there's one by Aladdin (Thermos) I like, and one by Zojirushi, I've bought two of each over the years. Just tossed the Zojirushi. Zojirushi is a Japanese brand, very high quality, but a bit over-engineered. It's got this rubber gasket and plug that, you can clean them daily, they get black spots. Not sure if it's mould or what, but it's kinda gross and I don't like it. The Aladdin/Thermos one is a bit better, didn't think there was any mould anywhere until I dropped it, the cap flew out, mould farm inside! Nowhere that touched the beverage so that was nice. But I'm kinda done with both of them. I would rather just waste plastic than risk drinking from a mouldy reusable cup.

Are there reusable bottles that aren't mould farms?

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[–] CompactFlax@discuss.tchncs.de 9 points 4 days ago* (last edited 4 days ago) (2 children)

FWIW water grows less mould than water with sugar/flavor/etc.

Assuming USA, kleen kanteen, with a simple screw-off cap. Or yeti with those slider caps. Personally as a desk worker my water jug has no cap.

For cleaning, soaking for 20 min or so with hot water and something like unscented oxyclean, powder brewery wash, or a bit of dishwasher powder works very well at removing organic matter - for stainless and glass.

[–] anon6789@lemmy.world 2 points 4 days ago

I love brewery wash for my water bottle! Soap or bleach always seemed to give me a funny taste or order. It may have been in my head, but I didn't like it and it led me to cleaning it less often.

Decided to hit it with StarSan one time it got icky and cleaned it right up with no taste or smell.

I try to run it through the dishwasher more often, but if I put something odd in the bottle or it sat out for a long time, now I StarSan it.

[–] Fondots@lemmy.world 2 points 4 days ago

I am very bad at remembering to clean my water bottles regularly, I have about 4 nalgene bottles and a CamelBak in fairly regular rotation, they get left in the car, sometimes with water in them, sometimes empty but rarely totally dry, often for days, weeks, or even moths at a time. I don't drink water that's been sitting in my bottles for that long, but I've never noticed any weird smells, scum, cloudiness, mold, etc when I go to empty them.

And I can't say I've ever had an issue with mold or any other funkiness in any of my bottles.

And I think a lot of it is that I only put water in my bottles, no flavorings or anything else (except maybe occasionally iodine or other water purification products when I'm camping, which of course is just going to kill anything that would start growing in there otherwise)

I also usually (but not always) fill them with purified water to begin with.