PumpingWorking Pumping Mama

What Is Your Magic Freezer Number?

To determine how much milk you will need per day once you are back to work, multiply the number of hours you will be away from your baby by one ounce and by one-and-a-half ounces.

Example: I will be away from my baby nine hours a day.

9 x 1 ounce= 9 ounces
9 x 1.5 ounces= 13.5 ounces
My baby will need between nine ounces and 13.5 ounces of milk per day.

How many hours will you be away from your baby? ______________

Estimate that your baby will eat one to one-and-a-half ounces per hour while he is away from you.

Number of hours x 1 ounce = ________ounces.

Number of hours x 1.5 ounces =_______ounces.

Baby will need between _____________ounce and ______ounces of milk per day.

Now, to determine your “Magic Freezer Number,” multiply the number of ounces your baby needs to eat per day times three.

9 x 3= 27 ounces

13.5 x 3= 40.5 ounces

I will need to maintain between 27 and 40.5 ounces of milk in my freezer.

Now multiply your low and high end of milk needs by three days.

__________________ ounces daily x 3 = __________________

__________________ ounces daily x 3 = __________________

Using your calculations from the equation above, write the following on an index card:

I need to keep between _____ounces and _____ounces in my freezer.

Use this card as your reminder and motivator to pump.

  • Once baby starts at daycare, you may find this number is a little off. Just adjust to baby’s needs.
  • Also, if baby start sleeping longer at night and drops a breastfeeding session when at home, expect daytime bottles to get slightly larger (think half an ounce to one ounce in each bottle).