Hi,
agree with pp on both answers.
We went through the drama of how to make preparing a bottle easier esp. as he is exclusively on the bottle w/ form.
We tried a number of different ways.
Yes you can pre make the formula but general rule is: use within 24hrs & store at back of fridge. So if you know roughly how much you need for 24hrs make up a jug. (be careful to count out your scoops though, Id second guess my counts after a few scoops ' like was that 3 in the jug or is this the 3rd?? cant afford to get it wrong!) Other thing with this method is the heating of the form - either stand in hot water (preferred by most) or microwave (not so preferred). We found the warming in hot water was tooo long -wait for kettle to boil then often the hot water turns cold before bottle warm enough - mean while lo is crying out for his food.
SO we went through a number of other methods like filling bottles up with half the required water, when bottle needed, top up with hot/warm boiled water (this should make temp "just right") then add form & away you go.
BUT we are now going like this: full bottles with required water (eg 100ml) leave on bench (is safe to do so for 24hrs or if not comfortable put in fridge) when needed we heat the water only in the microwave (remove teat first), add form & give good shake 9this removes the potential hot spots, we then top up to required feed amount e.g 140ml with pre made form from fridge & give good shake. this cools the form to "right temp" & again removes the potential hot spots & stops the form from conitnuing to heat (have had this method given the ok by the makers of our formula).
Sorry for big ramble hope it makes sense & helps - let me know if you have more queries. I just found were live (NZ), breastfeeding is pushed down your throat as best & "only right" choice therefore very little support & advice on form. feeding SO I just want to help other people out by sharing what Ive discovered.