I made a horrific discovery this morning. Some of my pump connectors and valves had mold in them! The set on the bottle drying rack that was left horizontally instead of vertically must have had water trapped in them, causing the mold to grow. The worst part is, I threw away 2 bottles of milk I pumped yesterday just in case it came into contact with the mold!
1) completely assembled pump kit; 2) breast shield; 3) connector; 4) valve + membrane; 5) tubing; 6) Medela In Style Advanced (If you have a Medela Freestyle, the connector is going to look a little different)
When I was pumping for Charlie, I was very meticulous about washing my pump parts. I washed each piece individually in hot, soapy water after each use, and regularly sterilized them too.
As with most everything when it comes to second children, I’m much more lax. Olive’s nanny washes my pump parts now, but I’ll wash them once in awhile, and I admit that I’ve been lazy about disconnecting the valves and membranes. Well I’ve certainly learned my lesson and am not only going to wash my pump parts much more thoroughly, but I’m also going to sterilize them regularly as well.
I mentioned in a previous post on my pumping strategy that I keep my pump kit assembled in the refrigerator and use the same kit throughout the day (from 9am – 6pm), and then wash it at the end of the day. This way I only need one pump kit and don’t have to do dishes throughout the day. It took me a very long time to figure that out — I never did it with Charlie — and I thought I was so smart. But when I googled it today, apparently tons of moms had already been doing the same thing! It’s particularly practical for working pumping mamas.
Here are some more tips for storing and keeping pump parts clean:
– If you decide to go the refrigerator route, flush the pump kit with hot water after each use without disassembling it, and then store it in tupperware in the fridge. Many moms omit the rinsing, and I have too depending on how time crunched I am. I’ll even store the entire pump kit with bottles attached in the fridge.
– To hide your pump kit in a shared work refrigerator, stick it inside a ziploc bag or tupperware container, then put it inside a paper bag or lunchbox.
– If you opt to clean your pump kit after each use at work, you can use Medela Quick Clean Wipes or Medela Micro-Steam Bags for fast cleaning.
– To wash your pump kit, separate all your pump parts, including the connectors, valves, and membranes, and wash them in hot soapy water or in the top rack of your dishwasher. I typically hand wash everything, but when I was using the dishwasher, I’d still wash the valves and membranes by hand since the membranes were so fragile. A nipple brush works great for getting into the tiny crevices.
– Have backup membranes because membranes deteriorate with use, and the pump won’t work if a membrane has a tear in it.
– To sterilize pump parts, boil them for 10 minutes, use a Medela Micro-Steam Bag or electric sterilizer. There is no recommended guideline for sterilizing, except maybe if you have a preemie, and some moms never sterilize.
– Regularly inspect your pump tubing because condensation can cause mold to grow in the tubing (this is very common and has happened to me).
– Water can get in the tubing if you use pump parts that are not completely dry.
– Run your pump for a couple minutes after you detach your pump kit to remove any condensation left in the pump tubing.
– Clean your tubing any time milk goes inside them (though this has never happened to me in my hundreds of hours of pumping).
– To sterilize the pump tubing, detach the plastic ends, wash everything with warm water and boil for 10 minutes. Place the plastic ends back on when the tubing is warm. Then hang vertically to air dry, or attach to your pump and run until water evaporates. You can also add a little bit of isopropyl alcohol after you finish boiling.
What is your pump cleaning regimen?
Pumping & Increasing Milk Supply part 8 of 11
1. Increasing Your Milk Supply by Checklists2. Pumping Up the Volume by Mrs. Bee
3. My Pumping System by mrs. wagon
4. Don't Pay for a Breast Pump Until You Read This by Mrs. Tricycle
5. More milk, more milk, more milk! by Mrs. Hopscotch
6. Building up a Breastmilk Freezer Stash by mrs. wagon
7. Exclusive Pumping vs. Breastfeeding by Mrs. Bee
8. How To Clean a Medela Pump by Mrs. Bee
9. My Pumping, Freezing, and Defrosting Strategy by Mrs. Bee
10. Project Milk by Mrs. Bee
11. Feeding and Storing Expressed Breastmilk by Checklists
olive / 61 posts
i never even thought of putting the parts in the fridge and using again! that is genius! i washed every single part after every use and honestly I just wanted to kill myself half the time. I carried around a small bottle of dish washing liquid in my pump bag so that i can was everything in the work bathroom where I pumped. then because I didn’t trust bathroom water (i know its the same water but I just felt gross producing my baby’s food in a bathroom), I microwave sterilized everything after each use. it’s mortifying when you’re standing over the microwave and a coworker comes into the kitchen and sees you, and then asks what you’re heating for lunch. Errmmm.
honeydew / 7488 posts
I pump 3x at work. I hot water rinse after each use, keeping the connector and valve together as one piece and then store the parts in a mesh bag. I have thought about then putting the parts in in the fridge, but I was self consious about them being seen in the shared fridge (another bag like you mention would solve that problem). But my parts usually dry by my next pumping session, so I probably wont’ bother with the fridge. At the day’s end, I separate and load all parts into the dishwasher, minus the membranes, which I wash by hand. I also let the pump run at the highest setting after each session until the condensation is gone. It’s important to separate your parts often and rinse as I have seen dried milk build up in the crevices and become impossible to clean out.
honeydew / 7968 posts
what does that mean, you put the parts in the fridge? does that mean that you clean it, for example, once a day but use it multiple times a day and just put the items in the fridge until you last use it and clean it?
what’s the difference between sterilizing and washing? to me, they’re the same lol….
apricot / 453 posts
Good post. I’m glad I’m not the only one who’s caught mold in their pump parts. Mine has only been in my tubing however, and it happens quite often. I have now learned to carry around a bottle of compressed air in my pump bag to blow the tubes out after most pumps. The first time I found the mold, I wasn’t sure how long it had been in there…so I felt so awful about giving my son breast milk with air that passed by mold.
I’ve found that I will get a milk build-up in my valve’s if I don’t get in there and scrub them really good every few days – thankfully no mold yet.
I pump at work and store the parts in a Ziploc bag inside my cooler in the shared fridge. I can’t imagine cleaning them after every pump! Then I use the steam bags every few days.
grapefruit / 4049 posts
I recently read about medela and mold… pretty scary! If there is a next time around, I’m getting a Hygeia pump or a similar closed system pump. I luckily don’t pump too often… I nurse all the time… It is definitely draining, but I’m glad I don’t have to worry as much about things like this!
pomegranate / 3053 posts
Yikes. Thanks for the reminder to check my tubes! Did you replace the tubes for Olive? I actually have a second set that I bought when Nicholas was born and never needed a second set so I might just throw out the first set and use the new set for baby #2. I’ve also heard of putting it all in the fridge and wash once a day. I’m SO going to do that too. I used to kill myself washing it after every pumping session and it was SO exhausting… Thanks for the tips. Some I’ve forgotten about!
persimmon / 1465 posts
I just used a manual pump so not as many parts to wash. I washed and sterilised each time I used it but as I was still home with LO at that point I wasn’t having to do much pumping ( twice a day was unusual!). I hated washing the pump, it was a pain in the rear end! Kudos to all the ladies pumping at work! Wasn’t an option for me.
blogger / pineapple / 12381 posts
My last pump was a hand me down and I at one point found mold in the diaphragm on the body of the pump. Ewww! I had to get a new diaphragm.
Now I am much more careful about water in the system and I check the whole system frequently. I don’t worry so much about cleaning the actual bottles and “horns” after each pump, so much as rinsing as long as there’s no water in the tubing
I won’t go through that yuck again!
hostess / wonderful honeydew / 32460 posts
I used to put my pump parts in the fridge too! HAHA. I would throw them in ziplock bags.
Oh, the good ole days of pumping.!
apricot / 453 posts
@mrsjacks – when u say diaphragm – is that like the pump motor? All this mold talk has me a little paranoid.
apricot / 321 posts
I used the Medela Quick Clean wipes for pumping at work and they were a lifesaver! I had the freesytyle which has slightly different parts so I’m not sure if that made it easier, but it worked out pretty well.
grapefruit / 4120 posts
I didn’t even put the parts in the fridge… I would use them, wipe them off with kleenex and then use them again. If breast milk can sit out at room temp for 6-8 hours without going bad, I figured parts were fine too. I never had a problem. (I kept the Medela wipes handy in case I dropped something on the floor, etc.)
Also, sometimes when I got home I would give them a good hand wash, and others I would throw everything in a bowl with hot soapy water and leave a few hours or overnight, then rinse. I would sterilize about every weekend in m y microwave sterilizer.
The membranes are very delicate so it’s good to always have extras on hand!
guest
How do you get inside the connector clean? If mine looks a little icky am I out of luck?
admin / watermelon / 14210 posts
@rebecca – that’s where i found the mold! it wasn’t where the connector touched the milk… it was these two small crevices. i cleaned them with a nipple brush and hot soapy water, and then boiled them.
coffee bean / 26 posts
I never had problems with milk going into the tubes with my first daughter. Now with my 2nd, I always get milk up the tubes? Does anyone know why this happens? What’s the best way of cleaning it? I believe at some point the milk traveled up to the pump. How do I take it apart to check? I have the medela pump in style.
grapefruit / 4120 posts
@twogirls: The milk in tubes thing only happened to me once, when I let the bottles get too full. Maybe yours is defective or something? I cleaned the tubes with soapy water and rubbing alcohol like Ms. Bee described (then I also bought new tubing!). I don’t think you can look inside though!
guest
Another tip… if you call Medela, they will send you replacement tubing for free. The second one I got never got mold, so I think they improved it.
pea / 19 posts
for those of you with milk that goes up the tubing – you can also buy extra tubing at specialty stores like yummymummy or upper breast side (in nyc). i find that milk goes up the tube when its not positioned properly on the boob. so if you pump at work, and the parts are not allowing the milk to drain properly into the bottle, then its going to get stuck in the tubes. happened to me a lot since i was always trying to pump with one arm holding both pumps in place while i typed or ate. lol.
am i the only person who brought 2 sets of pumping parts to work so i wouldnt have to wash them? i pumped 2x/day at work, so i would bring 2 parts. i just bought enough parts to last througout the day, then wash all the parts just once a day.
its been so long since breastfeeding…brings back so many memories!
blogger / nectarine / 2010 posts
Just a tip that I discovered this weekend – fish tank tubing is the same diameter as the Medela tubing and very inexpensive. I paid $2.50 for 8 feet! I boiled the tubing for 10 minutes before use it.
I emailed Medela about the issue but they said they do not replace the tubing. Their replacements were $20 plus $12 for shipping.
Spacegrl – I have 5 sets so that I don’t have to handwash and can use the dishwasher every other day!
guest
I JUST called Medela about replacing tubing for free because of mold and they are! Even shipping is free! I just told them that water from the breast shield got into the tube and they said, “yes”!
Thanks for the post Rachel!!
guest
I could not get the end plastic piece off the tubing so I sucked and blew warm soapy water threw them to get the spots out, then I rinsed with warm water then boiled.
Is it safe to just rinse the pump parts and then storage in fridge? Do I need to dry it first? I am going to try this today. I always dread pumping because of the cleaning and drying of the pump parts.
guest
OMG I just finished sterilizing my tubing. They turned white! Any suggestions?
guest
I run my pump disconnected from the breast shields for about ten min after every pump and it gets the condensation completely out of my tubing. No water, no mold, no problem!
guest
Okay, Those of you who have problems with milk backing up into the tubing, you may want to break apart your flanges, connectors and membranes entirely. I am a RN in labor and delivery and have a LO of my own. The milk can “crust over” and block the membranes from emptying the flange, thus causing milk to back pour into the tubing. Mine have even done this and I hand wash and sterilize after every pump! Break it all down and clean it well, you wouldn’t want to drink from a crusty, dirty glass!
guest
I don’t even know how to get the valves out of the connector. Mine are screwed in so tight there’s not a hope in hell of getting them out. They should not be this hard to remove…
guest
Is it OK to pump warm milk into a bottle that already has refridgerated milk?
guest
Hippie, yes it is fine. I pump into the pump bottles, and store all together in a large bottle
When I have lunch, I change bottles, for just-in-c
ase food reactions. I make too much at a sitting to store in the pump bottles, and is easier to deal with two large bottles than four small ones.
On a different note, I found that using those tiny flossing brushes the size of a toothpick worked great for cleaning the corners in the whole thing.
admin / watermelon / 14210 posts
@hippie asian mom – you shouldn’t. i explain why here!
http://www.hellobee.com/2012/05/08/combining-warm-and-cold-breastmilk
guest
I found mold in my tubing as well.
Unfortunately I couldn’t get new tubing shipped fast enough so I pulled off the plastic ends, cut off the moldy parts, boiled the pieces, and put the plastic ends back on. Tubing is shorter but it will work until my replacement tubing arrives!
guest
This is a long thread so not sure if anyone got here but a few things:
1. I came across the great advice of storing pars in fridge after pumping because milk last 8 days when refrigerated so its super safe for the work day and saves major time.
2. I store milk in bags and pump parts together in small, opaque madela cooler in fridge and then
guest
Didnt get to finish
Then i wash at home with a designated brush only for bottle and parts and steralize in this with bottles https://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwi8mtSDjMPSAhUWSw0KHaiQAT4YABABGgJxYg&ei=_Pi9WJKaA4TFmQHIxZrADw&ohost=www.google.com&cid=CAESIeD2ctWXnQOaABTpXKo-bRAaXlGAX2gLvGp3paY3b6bl3g&sig=AOD64_3j4v0tb5K28_ONx5iqn62l5ePRPg&ctype=5&q=&sqi=2&ved=0ahUKEwiSiNCDjMPSAhWEYiYKHciiBvgQwg8IDA&adurl=