What do you use to clean the inside of glass sipper tubes?

[greychins]

So some may know I'm handfeeding kits... and I've been using a babyfood bottle with the bottle stopper and glass sipper tube to do so. I'm sort of getting a white-ish film on the inside of the glass sipper tube from the milk. I've let the thing sit in hot soapy water and thought maybe it'd rinse off (and I do wash after every use) but I feel like I actually need something that can go inside the tube to scrub it off. Like a bottle brush but tiiiiny.

I suppose this wouldn't be so obvious is I was using these bottles for water, but since it's the goat's milk mixture...

I realize that's not the best pic ever, but you can see, especially at the end of the tube where the milk comes out, how that whole area is like white-ish.

So I thought I'd ask what all of you use?

 

[Essentia]

A pipe cleaner would probably work.

One of these guys:

 

[greychins]

I suppose it might! Haha! That's so simple I didn't even think of it...

 

[jags]

I soak them in bleach water and then run a large pipe cleaner through them. It takes off even the worst in crud.

 

[proudmom25]

Whenever I need to clean the straws for my kids I use a Q-Tip. LOL!

Do you think that would be small enough? If not, the pipe cleaner is a great idea too!

 

[RDZCRanch]

Q-tips aren't long enough to clean the whole tube. I also use pipe cleaners...they work perfectly.

 

[greychins]

Thanks everyone!!