1 Don't add bottles to water that is already boiling. 2  The shock from the heat could cause the glass to break. 3  Don't let the bottles boil for more than 5 minutes. 4  This is a sufficient amount of time to sterilize them. If you have too many bottles to fit in your pot, you can sterilize your bottles in batches. 2  You can add the lids and nipples to the pot with the bottles. 3  Don't add bottles to water that is already boiling. 4  The shock from the heat could cause the glass to break.
The Nile crocodile is the largest crocodilian in Africa and is the second-largest crocodilian after the saltwater crocodile. The male crocodile usually measure from 3.5 to 5 m (11 ft 6 in to 16 ft 5 in) long, but very old, mature ones can grow to 5.5 m (18 ft 1 in) or more.he Nile crocodile is one of the most dangerous species of crocodile and is responsible for hundreds of deaths of humans every year. It is a rather common species of crocodile and is not endangered.
1 The black mamba is Africaâs largest venomous snake. 2  Interestingly, the black mamba is a brown to grey colour, and is instead named for its blue-black mouth lining. 3  One of the fastest snakes in the world, the black mamba is an agile species that actively hunts warm-blooded prey.enus. Dendroaspis. The black mamba (Dendroaspis polylepis) is Africaâs largest venomous snake and also one of its most feared. This species is also one of the fastest snakes in the world and can slither at speeds of up to about 20 kilometres per hour.