How much breastmilk should i store before returning to work

Express your milk faster

You can express your milk much faster if you use an electric breast pump and your hands at the same time.

Get a free pump

If you are going back to work or school, or are having a hard time building your milk supply, you can get a free pump from your health plan. Call the number on your health plan card to ask about this benefit. If you have trouble getting a pump from your health plan, call your WIC clinic. They can help.

Start pumping on your maternity leave

If you plan to go back to work, it's a good idea to begin pumping while you are still on maternity leave. It will help you get prepared and build a backup supply of breastmilk. You can begin anytime you feel ready. Start with pumping once a day between feedings. Many moms find that they are able to express more milk in the morning. Once you find a time that works best for you, try to pump around the same time each day.

Keep a consistent schedule

When you return to work, you will need to express your milk during the times you would normally feed your baby. Let your employer know about the importance of keeping that same schedule. Pumping at work will help you breastfeed your baby longer because it tells your body to keep making milk. It will also keep your body comfortable so that you can focus on work.

Thoughts of your baby can help milk flow

If you look at a picture of your baby, listen to a recording of your baby's voice, or think about nursing your baby, it can help you relax and start your milk flow.

Ready to start a freezer stash, but not sure how much breast milk you should stockpile? Here’s what you should consider when you start storing breast milk.

How much breastmilk should i store before returning to work

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What’s a breast milk stockpile?

A breast milk stockpile is extra milk that you express (usually with a breast pump, but sometimes via hand expression) and store, usually in the freezer.

This extra breast milk can be used whenever you need to be separated from your baby – going back to work, for a date night, etc. You may also want to store excess milk if you are exclusively pumping.

You may not need a breast milk stockpile at all! How much you want to store depends on why you are freezing extra breast milk.

Let’s take a look at some common reasons, as well as how much milk you’d want to have for each.

For going back to work

You don’t need a huge freezer stash for going back to work. Basically, all you really need is enough for your childcare provider to feed your baby on your first day back.

It will work like this:

  • On the first day, you’ll send bottles from your freezer stash. You’ll pump while at work and bring the milk home.
  • On the second day, you’ll send the milk that you pumped the first day. You’ll pump while at work and bring the milk home.
  • And so on.

Is having more breast milk stockpiled for peace of mind good? Definitely, if you can manage it – but don’t stress out if you don’t have a freezer full of milk ready to go when it’s time to return to work.

So how much do you need for that first day?

This can be a little tricky because the amount of milk that a baby takes in a day can vary by so much – both 20 oz and 35 oz total per day are normal. In general, for 8-10 hours away from your baby, you’d need between 9 and 16 oz, split between 3 or 4 bottles.

If you’re unsure of where in that range you need to be, try doing a pump/bottle feed test run to see how much your baby takes in a single feeding, then multiply by the number of bottles you’re sending.

More on starting a freezer stash for work here.

For a date night

How much breast milk you’ll want to stockpile for a date night depends on how long you’ll be away from your baby.

I would estimate the number of feedings your baby will need while you’re away – how many times you’d be nursing if you were home – and leave between 3-5 oz per feeding. (If you have no idea how much your baby takes, I would go with the higher end if possible.)

For a trip

If you’ll be going on a trip without your baby, you need to calculate about how much milk he or she takes in a day, and then multiply that by the number of days you’ll be gone.

If you primarily nurse, you might want to prepare by pumping and bottle feeding for a day to see exactly how much your baby takes. (The amount that baby takes can vary from feeding to feeding – he or she might take a lot more first thing in the morning versus mid-afternoon, for example).

More on traveling without your baby while breastfeeding here.

To stop pumping early

Sometimes exclusive pumpers would like to wean from the pump, while continuing to feed their baby frozen breast milk for a certain amount of time.

If this is something you’d like to do, I recommend either using a pumping app like Pump Log or a spreadsheet to figure out how much you’ll need for the amount of time that you’d like to feed breast milk and the amount that your baby takes.

More on how to calculate how much freezer stash you’ll need to wean early here.

What breast milk bags should you use?

If you’re building a small freezer stash (such as for date nights, or getting ready to go back to work), you might want to use reusable breast milk bags. These are great because they don’t leak (unlike disposable bags, which occasionally do).

How much breastmilk should i store before returning to work

However, if you’re creating a large stash (for example, to wean early), you will likely want to use disposable freezer bags.

More on my favorite breast milk bags here.

How much breast milk should you store in each bag?

There is no one correct answer to this – you kind of have to test it out and see what works best for you. I’d start with freezing about the amount that you think you will need for one feeding.

How much breastmilk should i store before returning to work

(Freezing in small amounts can be good for reducing wasted breast milk, but it can be also be a lot of breast milk bags to buy and manage. You want to find a middle ground.)

The good news is that if you’ve frozen more than you need in a bag, you can thaw it in the fridge or in cold water, and use the milk in multiple feedings. (Breast milk needs to be used within 24 hours of being fully thawed.)

More on thawing milk here.

How much frozen breast milk is too much?

Having a huge freezer stash can be great for peace of mind and/or weaning early. As long as you have the space to store it (many parents get a deep freezer for this) and think you’ll use it, great!

However, if you’ve frozen more milk than you could ever use before it expires, consider donating to a milk bank. You don’t want your hard work to go to waste.

Remember, feed your baby (or other babies), not your freezer.

Do you have any questions about how much milk you should be storing in your breast milk stockpile? Ask in the comments!

How much milk should I have stored for going back to work?

Now let's shoot for having between 3-5 days worth of milk stored before you go back to work. Multiply 12-16 ounces by 3-5 days. If you'll be missing four feedings per day, multiply 12-16 ounces by 3-5 days, and you'll get a total of somewhere between 36 and 80 ounces.

How much breastmilk should I stockpile?

To avoid waste, store milk in small portions by putting only 60 to 120 ml (two to four ounces) of milk in the container (that's the amount your baby is likely to eat in a single feeding). Fill the container up to 3/4 only. Milk will expand when freezing. Squeeze out the air at the top of the milk bag before sealing.

How many ounces of breastmilk should I have frozen before returning to work?

If you are returning to work and usually work a 12 hour shift, then a good goal to aim for is to store 20 ounces of breastmilk. After you have met that goal, you can aim for storing 60 ounces of breastmilk.

How many ounces of breastmilk should I store at a time?

You might start with 2 to 4 ounces (60 to 120 milliliters), and then adjust as needed. Also consider storing smaller portions — 1 to 2 ounces (30 to 60 milliliters) — for unexpected situations or delays in regular feedings. Breast milk expands as it freezes, so don't fill containers to the brim.