Baby Brezza Setting 4 Vs 5 (What Should I Use?)
If you’re trying to figure out the difference between Baby Brezza setting 4 and setting 5, you’re not overthinking it.
That tiny number actually controls how much formula powder goes into your baby’s bottle, and even a small adjustment can change the concentration.
The machine doesn’t explain much on the front panel, so it’s easy to second-guess yourself.
In this post, I’ll compare Baby Brezza setting 4 vs 5, how it affects your baby’s bottle, what happens if it’s wrong, and how to test it so you can feel confident every time you press start.
What Do Baby Brezza Settings Mean?
The settings on your Baby Brezza control how much formula powder the machine releases per ounce of water.
Higher number = slightly more powder dispensed.
Every formula brand has a different density. Even if two formulas use the same scoop size, the weight of the powder can vary. One brand might be fluffier. Another might be more compact.
That tiny difference changes how much powder fits into the machine’s measuring system.
That’s why Baby Brezza has specific settings assigned to different formulas. The machine is calibrated to match the powder weight that the manufacturer recommends when you hand-scoop it.
So when you see setting 4 vs setting 5, it’s a calibration adjustment - not a heat adjustment.
Also Read: How Many Scoops Of Formula For 5 Oz?
Baby Brezza Setting 4 Vs 5
Baby Brezza setting 5 dispenses slightly more powder than setting 4.
It’s a small increase, but that small increase changes the final concentration of the bottle.
Setting 4 is the sweet spot for many standard, non-specialty formulas that have a consistent, fine grain. These powders pack down easily, so the machine doesn't need to work quite as hard to fill the bottle with the right amount of nutrients.
Setting 5 is frequently the go-to for "Gentle" or "Sensitive" versions of those same brands.
Those formulas often have broken-down proteins or added starches that make the powder a bit more "clumpy" or voluminous.
If your formula’s official setting is 4 and you switch to 5, the bottle will come out a bit more concentrated. If your formula is supposed to be on 5 and you use 4 instead, it may be slightly diluted.
The difference isn’t dramatic to the eye, but over time it can matter. Babies rely on accurate ratios for proper nutrition and hydration, so consistency is important.
Why Using The Wrong Setting Is A Problem
This could become a serious issue.
If you accidentally leave the machine on 4 when the formula requires a 5, the bottle ends up too watery.
A baby who drinks watered-down formula isn't just getting a weak snack; they are missing out on essential fats and minerals needed for brain development, and they will probably be screaming for another bottle in twenty minutes.
If you go the other way and use 5 for a formula that needs 4, the mixture becomes way too concentrated.
This puts a lot of stress on those tiny, developing kidneys to process all that extra powder without enough water to flush it through.
It’s a delicate balance, and getting it wrong consistently can lead to constipation, dehydration, or just a very fussy, uncomfortable tummy for your little one.
How To Find The Correct Setting For Your Formula
The safest way to pick between 4 and 5 is simple: check the official Baby Brezza formula settings on their website.
You just select the model of your machine, the country where you bought the formula, and then find the brand and specific "stage" or version.
Here’s what you should do:
Look up your exact formula brand and specific type
Match the setting listed for your machine model
Double-check if you switch formula versions (like from regular to gentle)
Reconfirm after formula packaging changes
Don’t assume similar formulas use the same number. Even within the same brand, settings can differ.
If your formula isn’t listed, reach out to Baby Brezza support before guessing. It’s better to pause and confirm than run bottles on the wrong setting for weeks.
Also Read: Accidentally Put 2 Scoops Of Formula In 2 Oz
Signs Your Setting Might Be Off
Sometimes you won’t notice right away. Other times, something just seems off. Here are some common signs the setting might need adjusting:
The formula looks unusually watery or thin
The formula seems extra thick or clumpy
There’s more foam than usual
Your baby seems fussier after feeds
You recently changed formula brands
Another big one? If you hand-mix a bottle using the scoop instructions and it looks noticeably different from the Brezza bottle, that’s worth investigating.
Trust your gut. If something seems inconsistent, it’s worth double-checking the setting.
How To Test If Setting 4 Or 5 Is Correct
If you want peace of mind, you can test the machine.
One simple method is the plastic wrap test. You run a bottle without water mixing in, capture the dispensed powder, and compare the weight to what the formula scoop instructions say it should be.
This gives you a clearer idea of accuracy.
Another option is using a kitchen scale. Weigh the powder from a hand-scooped bottle, then compare it to what the machine dispenses for the same ounce setting.
Before testing, always clean the funnel and make sure the machine is maintained properly.
Buildup can affect how much powder comes out, which can make it seem like the setting is wrong when it’s really a cleaning issue.
Take your time with testing. Run it a few times to see if it’s consistent.
If setting 4 consistently matches the scoop instructions more closely than 5, that’s your answer.
If 5 is the better match, then go with 5.
Also Read: 8 Month Old Not Babbling
Baby Brezza Setting 5 Vs 6
While we’re here, let’s quickly talk about setting 5 vs 6 because parents often jump between these too.
Setting 6 is often reserved for specialty formulas, like those designed for severe reflux or dairy allergies, which are incredibly thick or have a very strange consistency.
If 5 is for fluffy powder, 6 is for the stuff that almost feels like damp flour.
You will rarely find a standard infant formula that needs a 6, so if your search leads you there, double-check that you haven't accidentally selected the wrong version of your formula on the website.
The jump from 5 to 6 is a bigger leap in volume than the jump from 4 to 5, so precision is even more important here.
Bottom Line
The main difference between Baby Brezza setting 4 and setting 5 is that setting 5 dispenses slightly more formula powder than setting 4, making the bottle more concentrated.
Setting 4, on the other hand, dispenses a bit less powder and may result in a slightly more diluted mix if your formula requires a higher setting.
The safest move is always to use the official setting listed for your exact formula.
If you’re unsure, test it or contact support. Don’t rely on appearance alone, and don’t assume similar formulas use the same number.
When it comes to feeding your baby, precision beats guessing every single time.