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blustar214
So in love with my little girl
Member since 1/10 2471 total posts
Name:
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Why does DD"s sippy cup leak milk, but not water?
We have used the Playtex lil' grippers first training straw cup for months now. With water, it is great, but when I put milk inside it CONSTANTLY leaking. Milk travels UP the straw when DD is NOT drinking from it, what's the deal?
Are there any straw cups that don't do this?
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Posted 7/20/12 12:13 PM  |
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cheryl28
LIF Adult
Member since 2/10 4657 total posts
Name:
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Why does DD
We use the munchkin straw cups and the same thing. I lossened the top just a tiny bit and sometimes that helps
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| Posted 7/20/12 12:34 PM |
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TwoPeas
LIF Adult
Member since 7/08 1165 total posts
Name:
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Why does DD
Again glad to know I'm not alone....It's SOO annoying!! I've bought about 10 different types of sippy cups and they all do the same thing.
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| Posted 7/20/12 1:01 PM |
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ny55angel
car seat tech & geek :-)
Member since 2/06 4346 total posts
Name:
P
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Why does DD
My dad explained why to me....
I typically use room temperature or not super cold water but milk is obviously cold. When the milk is sitting out for a little bit it starts to warm up. Because the cups are "spill proof" they have not vent system. The pressure from the warmer milk expands and has no where to go but up the straw. If you loosen the top when you notice the milk rising it will let air in, also if you take a little SIP of milk it will relieve the pressure as well. Not that the summer is here and I have been putting a ice cube in ds's water it happens with that to if sitting too long.
Make sense??
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| Posted 7/20/12 2:16 PM |
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MrsH2009
Thank you St. Gerard!
Member since 8/09 6631 total posts
Name:
M
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Re: Why does DD"s sippy cup leak milk, but not water?
Posted by ny55angel
My dad explained why to me....
I typically use room temperature or not super cold water but milk is obviously cold. When the milk is sitting out for a little bit it starts to warm up. Because the cups are "spill proof" they have not vent system. The pressure from the warmer milk expands and has no where to go but up the straw. If you loosen the top when you notice the milk rising it will let air in, also if you take a little SIP of milk it will relieve the pressure as well. Not that the summer is here and I have been putting a ice cube in ds's water it happens with that to if sitting too long.
Make sense??
Interesting! I have noticed it with water because I've been using cold water when we take it to the beach, or if I get water from a restaurant.
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| Posted 7/20/12 3:53 PM |
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ny55angel
car seat tech & geek :-)
Member since 2/06 4346 total posts
Name:
P
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Why does DD
I only notice it with the water when its cold or left out for a long time and its hot in the house..
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| Posted 7/20/12 4:04 PM |
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inc0gnit0
LIF Infant
Member since 5/12 336 total posts
Name:
Miss Incognito
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Re: Why does DD"s sippy cup leak milk, but not water?
Posted by ny55angel
My dad explained why to me....
I typically use room temperature or not super cold water but milk is obviously cold. When the milk is sitting out for a little bit it starts to warm up. Because the cups are "spill proof" they have not vent system. The pressure from the warmer milk expands and has no where to go but up the straw. If you loosen the top when you notice the milk rising it will let air in, also if you take a little SIP of milk it will relieve the pressure as well. Not that the summer is here and I have been putting a ice cube in ds's water it happens with that to if sitting too long.
Make sense??
AH HA!!!
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| Posted 7/20/12 4:05 PM |
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blustar214
So in love with my little girl
Member since 1/10 2471 total posts
Name:
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Re: Why does DD"s sippy cup leak milk, but not water?
So great to have an explanation!!!
Do any of the straw cups not have this problem?
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| Posted 7/21/12 8:23 PM |
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ny55angel
car seat tech & geek :-)
Member since 2/06 4346 total posts
Name:
P
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Re: Why does DD"s sippy cup leak milk, but not water?
Not that I've found unfortunately!
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| Posted 7/21/12 8:28 PM |
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