Love it! Why? Listing pros and cons below and will list some tips at the end. Hope it helps. In short, I do think that any good Thermos could do a great job as well if you have access to a fridge at work and that is where you intend to use the chiller. If you need to chill milk without a fridge, read on.

Pros:
- It eliminates ice packs to chill pumped milk in absence of a fridge (great for the forgetful, tired mom ;)) and you don't have to travel with a bunch of bottles. I feel it is way easier to handle. I used it this way mostly when traveling, not so much at work (where I had access to a fridge).
- Stores milk COLD. (Keep in mind the inner chamber only holds 12 oz! 24 oz if using inner chamber for ice and storing milk in the outer chamber. Still nice and cold, but less so than with the milk in the inner chamber.)
- Can be re-used as a Thermos when done pumping!

Cons (not really, just inconveniences for me):
- Inner chamber only holds 12 oz. Not enough for a work day's worth pumping for most moms. Even when using the inner chamber for an ice/water mix and filling the outer chamber with milk, that is only 24 oz (possibly 25, but that's cutting it really close when screwing in the top). If you have access to a fridge, you can store about 34 oz in the bottle and it says cold enough on the way home even without ice.
- Price is a bit steep for what it is, especially if you aren't using the ice chamber as intended. But it is versatile and I did make use of all options over time.
- The direct pumping option doesn't work well for me (didn't seal well) and isn't really practical due to bottle size and the need for two chillers if you want to double-pump!

Tips:
- Let your milk come to room temperature after pumping and before pouring into the chiller (if you can). It definitely helps keeping the ice longer.
- The inner container is small (12 oz). So, likely too small for a whole day's worth of milk. I often used the inner chamber (filled it with ice chips and added cold water from the fridge) to chill. 24 oz of milk can be stored that way. That still was not enough for me most days (I have twins and easily pumped 40 oz during a work day). I have also used the chiller without ice since I do have access to a fridge at work (about 34 oz can be stored this way). I just pumped into some regular bottles and "dumped off" into the chiller. The milk stays cold enough on the way home if it was kept in the fridge during the day. I left a pump and a whole set of pumping parts at work, stored in the fridge between pumps and cleaned at the end of the day - dried over night at work. (Works well if you have access to a desk or a locker, a sink, and a fridge).
- You will get some milk fat stuck to the inner chamber if you filled that with ice. Also might have a milk fat "ring" if you just stored milk in the bottle in the fridge. That is perfectly normal and happens to any breast milk storage container. Just leave a little bit of room in the bottle, make sure the ice chamber and the top is sealed well, tip over and swirl/gently shake for a bit to re-suspend the milk fat before pouring out.
- I used several 32 oz Mason Jars with pour lids to store milk at home (poured into those directly from the Ceres chiller when I got home from work). This allowed for easy pouring of bottles for our nanny while I was at work and doesn't create a bunch of plastic waste from bags. If you prepare bottles for day care the night before, you won't need extra storage - just pour directly into the bottles that go to day care!
- Obviously, if you want to freeze milk on a routine basis, you still need a system for that. Consider "milk sticks" or "cube trays" and large freezer bags for that. That will cut down on the plastic waste as well.

Good luck, pumping momma! You are doing a fantastic job for your baby! It is HARD work and a LOT of commitment. Make sure your family appreciates and actively supports your hard work and dedication! Pump on, momma! You've got this!

If there is one pumping-related thing you must have on your baby registry it's the OG Chiller! I pump at work to provide my baby bottles at daycare and this system is so well thought out and high quality. I pump around 15-16 oz during the day, so I put my milk in the chiller and fill the inner chamber with ice. My milk is still cool when I get home in the evening! So grateful I don't need to use the gross office fridge!

I love the versatility - I bought converters separately to fit my Spectra S2 flanges so I can pump directly into the inner chamber if I need to. I've also used the cap as a bottle with the same Spectra converter to fit my baby's Dr. Brown nipple on it.

At first I hesitated to buy due to cost, but let me tell you, this system is worth every last penny!

This is soooo helpful for a pumping mom! With my first I would lug a cooler and little bottles of milk that easily spilled around. With my second I got the ceres chill and it's soooo convenient! Keeps the milk cold and I never worry about it spilling. I love that you can use it so many different ways and for different storage capacities. Also nice that some parts are dishwasher safe. Highly recommend!

The Ceres Chill OG Breastmilk Chiller is an absolute game-changer! It's like the magical TARDIS of breastmilk storage - bigger on the inside! Who knew that this little miracle worker could not only keep your breastmilk chilled but also turn Yaya into a wine-sipping superhero on the move? Five stars, baby!

First of all, the breastmilk chilling capabilities are top-notch. It's so efficient that it could chill a glass of lava in seconds (not that I've tried, but if you have, please let me know). The cooling power is so intense that I half-expected it to start a new Ice Age in my kitchen. But here's where it gets awesome: this thing can hold an entire bottle of wine! I mean, what more could you ask for?!

Picture this: Yaya, frazzled after chasing after the grandkids all day, reaches into her bag, and voila "“ she's got a chilled bottle of wine ready to rescue her from the chaos. It's like her secret weapon against toddler tantrums and teenage drama. Plus, it chills that vino in just 20 minutes. Yaya doesn't have time to wait around; she's got a wine-down to attend!

Now, I know what you're thinking: "But what if Yaya mixes up the breastmilk and the wine?" Fear not, my friends! The Ceres Chill OG Breastmilk Chiller is foolproof. It's got separate compartments, so there's no chance of a milk-wine mix-up. It's like a toddler-proof lock for grown-up indulgence!

So, if you want to turn Yaya into the most stylish and chilled-out grandparent on the block, look no further than the Ceres Chill OG Breastmilk Chiller. It's the ultimate accessory for those "on the go" moments when a little sip of wine could turn a hectic day into a hilarious adventure. It is the superhero your lactating life didn't know it needed. It's got storage for days, cools faster than an ice cube in a Formula 1 race car, and looks so good it should be on the cover of a breastfeeding magazine. Five stars and a toast to innovation!

Awesome product. Bought this for my daughter and she LOVES it. Versatile, easy to transport to/from, functions as advertised! Nice design and essential for breast feeding, working moms! A bit expensive but worth it.