The pitcher method for combining pumped breast milk

Let’s talk about the Pitcher Method 🍼

A total game-changer if you’re pumping around the clock and tired of a fridge full of little bottles.

Here’s how it works (and how to do it safely):

✨ What is the Pitcher Method?

It’s a way to collect and store multiple pump sessions of milk into one container throughout the day—rather than storing 2 oz here, 3 oz there, and drowning in dishes.

💡 Best Practices for Pitcher Method Success:

✔️ Only combine milk from the same 24-hour period.

Yes, even if you’re keeping it cold! After 24 hours, that milk should either be used, frozen, or separated from the next day’s stash.

✔️ Cool freshly pumped milk first

You can add freshly pumped milk to previously chilled milk if you plan on freezing it that day  if you want to use that milk fresh on a different day, consider chilling it before combining to help prolong its shelf life

✔️ Use an airtight container

Preferably BPA-free or glass. It limits exposure to fridge odors, bacteria, and accidental spills (no one needs that trauma 😩).

✔️ Store the pitcher in the back of the fridge

That’s where the temp stays the most consistent. The fridge door gets warm every time it opens—milk likes it cold and stable!

✔️ Freeze milk if you’re not going to use it in 4 days.

Label it with the earliest pumping date/time and get it into the freezer. Don’t wait!

⏱️ How long is pitcher milk good for?

• In the fridge: Up to 4 days
• In the freezer: 6–12 months (ideal to use within 6)
• At room temp: 4 hours max (and that’s if it hasn’t been previously frozen)

🧊 BONUS TIP:

If you’re dividing milk into bottles or bags from the pitcher, totally fine to shake or swirl before pouring. Fat likes to separate and you want to make sure baby gets the full buffet