I noticed a topic in the FAQ regarding the dangers of new tyres.
Here is the procedure I've been using for a long time.
Get a scotch-brite pad (like steel wool) & douse it with "sugar soap" (available from any hardware store)
Scrub the tyre including the sidewall for a few minutes. This removes the preservative coating from the tyre.
Wash with water & let dry.
Repeat the process.
When tyre is dry go over it with some wet & dry (about 240 grade)
You still need to take it reasonably easy for the first few miles but you can corner with confidence.