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Bottle-feeding health and safety, or how to ensure hygiene of bottles and teats

Washing, boiling and sterilization of bottles and teats may seem cumbersome, but all these activities are very important for a baby's health. Remnants of milk are an excellent medium for bacteria, and baby's digestive system is still immature and very sensitive. Sloppy washing of feeding accessories can result in food poisoning, diarrhea or fungal infections, such as thrushes. So we would give you some tips on how to ensure their cleanness.
Edited by LOVI | 19 March 2014

First steps

When you plan to feed with a bottle, buy a few of them, so you can prepare a sterile set of bottles for the whole day. For breastfeeding mums one bottle is enough (e.g., to give the extracted milk). During purchase examine a bottle with an eye on its future cleaning;  the best are simple bottles without recesses from which it is difficult to remove the remains of a formula.

Bottles and teats should be washed manually, then you can be sure that no formula remained in any recess. A cleaning brush will be necessary; the best is one with two ends, one for bottles and one for teats. Transparent silicone teats are the easiest to clean. Teats of heterogeneous silicone have a thinner end, so you must be careful not to damage it during cleaning.

Preparing accessories before their use

Before the first use, as well as before any subsequent one you must wash and sterilize the bottle, the teat and the cap.


      Iron-clad rule

Never leave milk leftovers in a bottle. The best way is to wash the bottle, the teat and the cap immediately after feeding, or at least rinse them with water, so bacteria will not multiply in milk leftovers, and the rinsed bottle and teat will be easier to wash later.

Wash the bottle, the teat and the cap under running warm water. Do not use any corrosive or strong washing agents, normal washing liquid is enough. After washing, rinse the bottle thoroughly.

To remove all milk remains use a brush for bottles and teats, and it also should be thoroughly washed and rinsed after each use, and regularly boiled.

If you want to use a dishwasher, check whether a bottle manufacturer allows washing it in a dishwasher, and after taking it out, inspect the bottle for any possible remains of milk in bends and recesses. It is a good practice to rinse it again before boiling or sterilization.

Sterilization of feeding accessories


Before reaching for sterilized accessories, wash your hands. After sterilization, take utensils out with pincers.

Sterilization guarantees that no fungi or bacteria survive in the bottle or on the teat.

There are a few ways to sterilize bottles and teats.

Boiling  or scalding in a pot

After purchasing and washing the bottle and the teat, boil them for 5 minutes in boiling (bubbling) water. Later you can simply scald the accessories by placing them in a pot and pouring boiling water over them.


There are various types of sterilizers available on the market: electric, steam, for use in a microwave oven, or with a steam cooking function. In the sterilizer, bottles and teats are treated with steam at a temperature exceeding 100°C, so all germs are killed; sterilization lasts several minutes, then bottles can be stored in sterile conditions  in the device for several hours. On one hand, the sterilizer means a high one-time expenditure, but on the other hand, it is more convenient than boiling the accessories in a pot, saves water and, most importantly, time.

Self-sterilizing bottles

There are self-sterilizing bottles available on the market. You just pour a specified amount of water into a special cap, put the bottle cap and the teat with a handle inside, connect them to the bottle (by clicking) and put the whole assembly into an appropriately programmed microwave. After 90 seconds the bottle and the teat are sterilized.

Tablets and liquids for disinfection of vessels and accessories used by the infant

In this case, washed bottles and teats must be put into a pot or another vessel with a cover, and, depending on the product, a small amount of liquid should be poured inside, or a water solution with dissolved tablet should be poured over the accessories. After the time specified in a manufacturer's instruction, usually after 30 minutes, the accessories are ready to be used.

When sterilization is not needed

It is recommended to sterilize accessories for infant feeding until the baby is 6 months old. However, it is always an individual decision. It may be better to sterilize bottles and teats  for longer, when the baby's digestive tract is sensitive, the baby suffers from diarrhea, or thrushes often appear in his mouth. On the other hand, when the baby is already crawling, moves around on the floor, is teething and puts everything into his mouth, sterilization is pointless. When the child is one, you can treat his bowls, cups and bottles in the same way as vessels of other members of the family, but you should frequently replace sponges and tea towels, and maintain the kitchen clean.

Hygienic till the end

Do not wipe bottles and teats after washing and sterilization or scalding. Then it is easy to infect them with bacteria from the towel, or leave lints from a paper towel on them. Wet bottles and teats should be left to dry, so place them, preferably upside down, on a clean cotton cloth or use a special drying rack for bottles and teats.

17 JULY 2017
We introduce you the new release of our Medical+ Bottle!
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Karmienie piersią jest jedynym naturalnym sposobem żywienia niemowląt i żaden preparat zastępujący mleko kobiece nie posiada identycznych właściwości, co mleko kobiece.
Bardzo dziękujemy za zgłoszenie się do testów butelki LOVI Medical+.
Z góry bardzo dziękujemy za opinię.


Uprzejmie prosimy o zaznaczenie właściwej odpowiedzi lub odpowiedź na poniższe pytania:

Cz. I - wypełnić przed przetestowaniem butelki LOVI Medical+:

  1. Czy używała Pani butelki LOVI Medical+?
  2. Czy słyszała Pani o butelce LOVI Medical+? Jeśli tak, to skąd?
    nie słyszałam
    tak, z Internetu
    tak, od koleżanki/znajomej
    usłyszałam o niej w innych okolicznościach (jakich?):

cz. II - wypełnić po użyciu butelki LOVI Medical+:

  1. Czy butelka LOVI Medical+ spełniła Pani oczekiwania? W jakim stopniu?
  2. Czy smoczek dobrze się odpowietrza?
  3. Czy przejrzystość butelki jest porównywalna do innych butelek do karmienia?
  4. Jakie zalety posiada według Pani butelka LOVI Medical+ z dynamicznym smoczkiem?
  5. Czy zauważyła Pani różnice między karmieniem butelką LOVI Medical+ z dynamicznym smoczkiem a innymi butelkami ze smoczkiem z jednorodnego silikonu? Jeśli tak to jakie?
  6. Czy miała Pani jakiekolwiek problemy z użytkowaniem butelki LOVI Medical+? Jeśli tak to jakie?
  7. Czy zauważyła Pani różnicę pomiędzy poprzednio używaną przez Panią butelką LOVI (pyt. do Mam używających wcześniej butelki LOVI)