Sodium hypochlorite: 1.0%. Sodium chloride: 16.5%.

First use a bottle and teat brush and warm, soapy water to thoroughly remove all milk from baby’s bottles, teats, and dummies.
Then add one capful for every five litres of cold water and immerse the clean bottles, teats and dummies for at least 30 minutes before use.
Greater detail: For sterilising baby bottles and teats without boiling, first clean utensils thoroughly. After each feed rinse out the bottles and teats with cold water. Wash in soap and water using a bottle brush. Rub teats with salt inside and outside to remove milk deposit rinse with cold water. Always use cold water, as hot water hardens milk residue and inhibits effective sterilisation.
To prepare the Milton solution, use a Milton sterilising unit or a non-metallic container. Fill the unit with cold water. Add 12.5ml of Milton to every litre of water. Half a capful of Milton = 12.5ml. Note that you need to make a new Milton solution every 24 hours. Do not leave the solution in direct sunlight.
Soak utensils for 30 minutes. Place baby’s bottles and teats in the Milton solution. Make sure all items are completely covered by the solution. Remove any trapped air bubbles in the bottles. Place lid on and leave for at least 30 minutes. Leave the bottle in the solution until the next feed. Wash your hands thoroughly before removing items from the solution. Drain bottles and teats. Do not rinse. Fill bottle immediately and cover teat. Use cap for ml measurement.
Milton also makes your drinking water safe. Use 2ml Milton in 1 litre of water, strain water through a clean material to remove debris, and add Milton. Let water stand for 30 minutes before drinking.