But if you're not working with cutting torches and welding equipment, there's no easy way to open a propane tank enough to put an explosive in it (assuming pure

But if you're not working with cutting torches and welding equipment, there's no easy way to open a propane tank enough to put an explosive in it (assuming purely amateur equipment) and then seal it up again good enough to hold high pressure. A pressure cooker on the other hand is ready made to have a big opening to put lots of stuff inside and then seal it up again.