Preheat the oven to 300° and line a sheet pan with parchment.
In a large bowl, combine the oats, buckwheat, sunflower seeds, zest, brown sugar and salt; set aside. In a small dish microwave the coconut oil until melted and stir in the honey and orange emulsion. Pour that on top of the oat mixture and stir to combine.
Spread oat mixture in a thin layer on parchment lined sheet. Bake for 20 minutes. Add the coconut and pepitas to the oat mixture and stir on the baking sheet. Bake for an additional 15-20 minutes until oats are golden.
Remove from oven and allow the mixture to cool on the baking sheet. It will firm up as it cools.
While the granola is in the oven, line a fine strainer with atleast 6 layers of cheesecloth. Add the kefir and allow it to strain for up to an hour or until it reaches desired thickness.
Divide kefir amongst serve bowls or jars. Top with cooled granola and orange segments. Serve immediately.