Are you familiar with the method that jerky is made or how a dehydrator works? If you have some lemons and oranges or other citrus fruits, then you have all you that need to make a natural vitamin C powder. Your best bet is to use fresh fruit and your kitchen oven.
The key to making natural vitamin C powder is using fresh fruits and a bit of time. Some fruit will take longer to completely dry than others. Expect to wait 12 and 24 hours, depending on the type of fruit being used to make your powder.
You will also need a way to grind up the pieces of fruit that have fully dried. A basic spice grinder will be perfect, but a coffee grinder can also do the job. Make sure to grind all of your fruits separately unless mixing a specific blend is necessary. Keep your natural vitamin C powder stored in airtight containers.
Instructions to make natural vitamin C powder at home are on instructables.com here…