I learned this trick from a friendly rocketeer I met at a launch on April 18, 2022. To prevent burn holes and scorching on your parachute, wrap the folded parachute in one sheet of Estes recovery wadding before inserting the folded parachute into the body tube. The recovery wadding sheet creates a little flame-proof bag around the parachute. Even when using ample amounts of Estes recovery wadding (or dog barf), or a nomex blanket, hot ejection gasses still seemed to get to my parachutes and scorch them. This trick worked like a charm! No burn holes on the launch of April 18, 2022!