Do you notice when you prepare food how often the instructions say to start with a pan of cold water? Whether it is for boiling pasta, corn, rice, oatmeal, etc. the instructions invariably say to use cold water. I recommend using cold water in my recipes also.
Here is the reason: “All” plumbing pipes can contain lead. It is THOUGHT that HOT water pulls more of the lead from the pipes into the water. Using cold water is THOUGHT to not pull lead from the pipes. However, I use my PUR water filter to avoid the issue altogether. But don’t run hot water through a PUR – it ruins the filter.
So, although it would take less time to boil hot water, use cold, okay?