Tommee Tippee PerfectPrep RECALL??

[ItsNotYourUsername]

Bought the Tommee Tippee PerfectPrep and tested at home. I currently feed 120ml so wanted to check what the water output is. It consistently dispenses 110ml. I downloaded the app and updated the machine, tried different settings (warm/ default/ cold mode) and it’s still the same. Always 110ml. Tried 150ml- it gets to under 140ml. Tried 210ml it dispenses 195ml… I tried the machine without formula, as adding the formula would make it to probably 120ml, but that isn’t correct. It’s 30ml of water per scoop. Therefore a feed with 120ml of water plus the formula makes it approx 130ml.
We returned the faulty machine and tried another, brand new one. Same isssue. Returned it and tried 3rd and last machine- guess what? Same problem!!!! I won’t be using it but I’m seriously concerned this is a recall situation. The machines exchanged were from different batches, so it’s not one faulty batch. Please check your machines, your babies could be at risk of being fed stronger than advised formula which can make them sick 🙁 I’ll be contacting Tommee Tippee on twitter.

This sounds a lot more like they all worked well and you were doing it wrong tbh….

Did you change the setting numbers correctly? The smallest it does is 4, which is 120ml.

Sounds like OP is setting it correctly but it isn't dispensing the correct volume of water. This means the formula will be more concentrated than its supposed to be

Exactly this!

How are you measuring the water, are you using scales or the guide on the bottle?

I used several different bottles, tommee tippee ones, dr brown, nuk and Medela. Also a Pyrex jug… just to be sure.

Yes I did. Tried setting 4- dispensed 110ml instead of 120, setting 5 dispensed less than 140ml instead of 150ml, setting 7 dispensed 190ml (supposed to be 210ml!).

Is it to do with the slight difference between fluid ounces and mls?
From reading online, it looks like the machines are set to ounces as the default - is it possible to change this setting?
A 4oz bottle and a 120ml bottle both use 4 scoops of powder, but 4oz of water is 113 mls of water.

I don’t think so. When I used the setting 7 (7oz) it only dispensed 6.5 oz of water.
When I used setting 4 (4oz) it dispensed 3.7 oz. Surely this can’t be right?

You can’t change this setting. It just doesn’t make sense. Does anyone have this machine and can check for me, please? I was so looking forward to using it during the nights…

I would try weighing the water as well.

I have to make up formula daily for my 5 year old, I always weigh the water as I find the bottle markings inaccurate. When his feeds are made up by eye rather than weight more often than not his feed pump which has been set to deliver 150mls will alarm early and will have only delivered around 135ml instead of the 150mls it's set to give. When I worked on a neonates ward we would make up the milks for our ward, SCBU and NICU and for the paeds wards and we always weighed water as it's a more accurate measurement.

Thank you, I’ll check this as well.

It’s because it uses ounces not ml, there’s a slight difference but you still use the same number of scoops

Yes but the 120mls or 4 ounces includes the powder. If you add 4 scoops of powder to 110mls of water you get a 120mls bottle, because the dissolved powder becomes the additional 10mls. And so on. A 7 will have more “missing” water than a 4, because you will be adding more powder. And so on.

Think of it in terms of orange squash. If you put a shot glass of squash in a glass and top it up to the top with water, the glass is full. If you put the same amount of water in the glass without the squash, it wouldn’t be.

All the machine is doing, correctly, is leaving space for you to add the formula powder, so that the total volume of the bottle, as made up, is 120mls.

This is incorrect. You add 120mls/4oz and then add powder so the made up formula is a little over the original amount of water you added

I wish this was the case. 7 oz = 199 ml.
it inly dispenses 6.5 oz (190ml).

This is totally incorrect in terms of making formula. It’s 1 scoop per 30ml of water.
So to make a 4 scoop of formula you need 120ml of water and that mixed with added formula makes it approx 130ml feed, for 5 scoops you need 150ml and so on.
This is the very reason I was checking the water outlet.
Feeding baby formula with less water (over-concentrated) creates a dangerous, thick mixture that can cause severe dehydration, dangerous salt/mineral imbalances, and intense strain on a baby's kidneys. It can cause extreme constipation, vomiting, and in severe cases, dangerous electrolyte imbalances (high sodium) that may lead to seizures or brain damage.