When you receive your Butterfly Cup it is essential that you sterilize it before using it. There are 4 methods for sterilizing the cup: 1 Put a pot of water on to boil. Once boiling you can place the Butterfly cup in the water and continue to let it boil for a few minutes. After 5 minutes remove the pot from the heat and remove the cup. 2If you are not able to place the cup in a pan on the stove, it will be fine to pour boiling water…
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