Drying flowers can also be done by using non heated silica gel.
To do it, you have to you have to use an airtight container box to keep the silica gel and the lower. An airtight container has very tight lid that will not enable air to enter the container. It is very important to use this kind of container, because air carries water vapor that can prevent the drying process.
This method will take one week to result in completely dried flowers. Prolong of drying process may cause the flowers’ color change due to excessive drying. After being used, you can put the silica gel in a baking pan and bake it in an oven so that it will be dried again.