Smelly stainless steel Sippy cups

[LittleBlessings]

I have some stainless steel Sippy cups that have a very bad smell even after being washed.

How can I get this Oder to go away?

[nathansmum]

I'd first up try adding baking soda to the water and letting it soak. If that didn't work I'd change it all and do a soak with white vinegar.

Hope you can solve the problem, I haven't known of stainless steel to hold smell before (are there some little crevices that mould is growing perhaps?).

[sunnysandiegan]

I have never seen a SS sippy cup, so I have a question... Are there ANY parts that are NOT stainless steel? Like the PP, I haven't known of any SS to hold smells.

In any case, if you have a bottle brush, I would use that and hot soapy water and scrub every little nook and cranny...rinse well...and dry thoroughly. If there are any non-SS parts, I would concentrate my efforts on those parts. If it still smells, I would run it through the dishwasher. (I don't usually run any of our SS bottles through the dishwasher, but that's just because they are easy to wash by hand every night in order to use them daily. Our dishwasher is only run every few days.)

[dillonandmarasmom]

Vinegar. Soak it for a few moments, rinse well. Smell-gone!

[Meems]

denture cleansing tablets. the sigg company told us to use them and now i use them for all of our impossible to reach bottom cups.

[Siennaflower]

Originally Posted by dillonandmarasmom

Vinegar. Soak it for a few moments, rinse well. Smell-gone!

This is what we use on our Klean Kanteens.

[cristeen]

The first place I'd look is any crevices and any non-ss parts. What do you normally put in this cup? A water cup shouldn't smell (unless you have hard/sulfuric water), but milk or juice can both attract bacteria (and smell horrible) and will need to be cleaned more thoroughly.

But, I did notice that over time, my DH's SS coffee cup built up a deposit. I was having a really difficult time getting it off, and even the dishwasher wasn't touching it. So I wound up putting about a Tbs of BS into the cup, filling with HOT water and letting it sit overnight. Then just a light scrubbing with a bottle brush and the water turned BLACK. I wound up having to do it twice because the deposit was so bad, but after 2 soaks/scrubs/rinses, the cup was actually shiny again.

I also have a cream whipper that is metal - that for some reason after a few uses started smelling like rotten milk. Didn't matter how much soap/hot water/scrubbing I used on it, the milk was clinging to it. For that item, I wound up having to run it through the dishwasher as the only thing to get it clean - even though it's technically not dishwasher safe.

My point being that if one thing doesn't work, try something else.