How to Use the Ceres Chill with Pump Converters: A Step-by-Step Guide
By Ceres Chill — The Breastmilk Storage Game-Changer | Published: 2026-08-26
Category: How-to Guides
Learn how to pump directly into your Ceres Chill using pump converters. Step-by-step guide for Spectra, Medela, and other pumps.
Pumping directly into your Ceres Chill saves time and keeps your milk cold from the first drop. But to make that connection, you need the right pump converter. This guide walks you through the simple steps to attach your pump to the Ceres Chill, whether you use a Spectra, Medela, or another popular brand.
With the right setup, you can pump straight into the stainless steel interior of your Ceres Chill, skip the extra bottles, and reduce the risk of spills and contamination. Here’s how to do it safely and efficiently.
What You Need to Pump Directly into Your Ceres Chill
To pump directly into your Ceres Chill, you’ll need your pump, a compatible pump converter, and your Ceres Chill chiller/warmer. The converter replaces the standard bottle your pump normally connects to, allowing the pump to attach directly to the chiller’s opening.
Ceres Chill offers pump converters designed to fit most major pump brands. Check the compatibility list to find the right one for your pump. If you’re unsure, the product page includes a guide to help you match your pump model.

- Ensure your Ceres Chill is clean and dry before use.
- Check that the converter is securely attached to both the pump and the chiller.
- Keep the chiller’s inner chamber frozen or chilled before pumping for best results.
Step-by-Step: Attaching the Pump Converter
Start by removing the lid from your Ceres Chill. Then, attach the pump converter to the opening, twisting it until it locks into place. Make sure it’s snug to prevent leaks. Next, connect your pump’s tubing or breast shield to the converter, following your pump’s standard setup.
Once everything is connected, turn on your pump and begin pumping. The milk will flow directly into the chiller, where it stays cold thanks to the inner chamber. When you’re done, disconnect the pump and converter, replace the lid, and store the chiller in your bag or fridge.
- Practice attaching the converter at home before your first outing.
- Use a clean, dry converter each time to maintain hygiene.
- If you have a Spectra or Medela, choose the specific converter for your brand for a perfect fit.
Tips for a Smooth Pumping Session
To avoid any mess, double-check that the converter is tight before you start. If you’re pumping at work or on the go, consider using the Pumping Accessory Pouch to keep all your parts organized. It’s designed to hold your pump, converter, and other essentials neatly.
After pumping, you can either use the milk immediately or store it in the chiller. The Ceres Chill keeps milk cold for up to 20 hours, so you can pump in the morning and feed later without worrying about temperature.
- Clean your converter and chiller thoroughly after each use.
- Label your chiller with the date and time if you plan to store milk for later.
- Experiment with the setup at home to find the most comfortable position for pumping.
Pumping directly into your Ceres Chill with a pump converter is a game-changer for busy moms. It simplifies your routine, keeps your milk cold, and reduces the number of bottles to wash. With the right converter and a little practice, you’ll be pumping straight into your chiller like a pro.



