You can use fresh spinach from your garden or spinach bought at the grocery store. Organic is best if possible to avoid pesticides.

When working with bulk spinach, give it a good rinse under cold water first. Pay extra attention to cleaning organic spinach as it may contain more dirt if not washed before packaging.

Before dehydrating spinach, you want to remove as much moisture as possible from the surface of the leaves. Having wet spinach going into the dehydrator will slow down the process.

After rinsing off the spinach, use a salad spinner to remove excess water. You can also let leaves air dry for 10-15 minutes on a towel before loading your dehydrator trays. Removing surface moisture will cut down total dehydrating time.

Now you're ready to dehydrate those spinach leaves! This step removes all remaining moisture slowly and thoroughly.

For an electric dehydrator, set temperature between 125-135°F. Arrange leaves in a single layer on trays. Rotation of trays and checking spinach every 2 hours ensures even drying.

Total dehydration time will be 4 to 8 hours. Leaves should be brittle when completely dry. Stems may take a bit longer than leaves to fully dehydrate.

You can also use an oven set to the lowest temperature, around 170°F. For ovens that don't go that low, prop the door open slightly.

Once spinach leaves are crispy and crumbled easily when squeezed, turn off your dehydrator or oven. Allow leaves to come down to room temperature before the next step.

Transfer dried leaves into a bowl or onto a baking sheet while cooling. Break leaves down into smaller pieces by crumbling between your hands over the container.

To grind leaves into a fine powder, you can use a dedicated coffee grinder, blender, food processor, or even mortar and pestle. Add leaves a handful at a time and grind into a powder consistency you desire.

A good blender or food processor works fastest to powder your dried spinach. Coffee grinders are great for small batches. Blend in short 5-10 second bursts to prevent overheating spinach.

You now have homemade spinach powder ready for adding to all kinds of recipes!