When boiling water, ensure it reaches a rolling boil for at least one minute. This will help to kill any bacteria or contaminants that may be present in the water. If you are using an aluminum pot, there is no need to worry about the aluminum leaching into the water.  Aluminum is a stable metal and will not leach into the water unless it is exposed to acidic or alkaline conditions. However, if you are concerned about aluminum exposure, you can use a stainless steel pot instead.