Freezing the beef for at least one hour or more, will make it much easier to slice thinly. Slice against the grain about 1/4 inch thick. You could also ask your local market butcher if they will slice it for you. Set aside in a bowl in the fridge once sliced.
Marinade
Add the marinade ingredients into a small bowl and whisk together until combined. Pour this over the beef and mix to coat all over the beef slices. Refrigerate at least 1 more hour or preferably overnight.
Dehydrator Method
Set the dehydrator to 158 degrees F. Spray the stainless steel trays with olive oil cooking spray.
Lay slices of beef in a single layer onto the stainless steel trays. I used all 6 trays.
Set the timer of the dehydrator for 6 hours.
Remove and place into an airtight container to store in the fridge for up to 7 days.
Notes
The 2 pounds of beef sirloin weighed 375 grams or 14 ounces.One serving after dehydrating the beef is 2 ounces or 56 grams.