Summary
Records can become warped due to a combination of heat and pressure. If you're storing your vinyl incorrectly, you could be inadvertently warping your own vinyl. You can buy a record flattening machine or pay a professional. Or you can flatten your vinyl using two books and a whole lot of patience.
Preheat your oven to its absolute lowest temperature. Once the oven has reached that minimum heat reading, put the glass panels with the vinyl in between them into the oven. Then set the timer for 30 minutes and wait. Once 30 minutes is up, carefully remove the glass and vinyl from the oven and let it cool to room temperature. Then remove the record from between the glass, cross your fingers and put it on your turntable.
