vicvic, i think it is worthwhile to invest in a steriliser. as 2Ks mentioned,sterilizer are cheaper nowadays and there's always bundle sales at fair. I have been using my steriliser for more than 2 years for my #1 and will continue to use for #2 so it is a good investment. For steriliser, you wash the bottles etc and then put in the steriliser and after a few minutes, the items will be steriliser and you can use. If you don't have a steriliser, after washing, you have to put the items in a big pot with water and then boil and then use tongs to take out the items and then pour the water away. Basically if you use pour, you will need a lot of water and longer time. With steriliser, you only need a small amount of water.