Freeze drying is cool - literally! It's the only method of drying that doesn't require raising the temperature of a sample and it works by using sublimation. And water only sublimes because it has a triple point. So if you want to understand how freeze drying works, Pharma Drama has you covered. Related videos; Why and how do we dry pharmaceutical materials? https://youtu.be/OV9MPKhTY0s Tray-drying; https://youtu.be/7AsOk2qxsjM Fluidised-bed drying; https://youtu.be/b24Lj8HQch4 Spray-drying; https://youtu.be/3bs_rFSK174