A question about a recipe: Pulled Pork Sandwiches

I have a question about step 3 on the recipe "Pulled Pork Sandwiches" from mtlabor. It says:

"Drain the chicken stock and add pork back into crockpot. Shred pork and add cumin, brown sugar, taco sauce, and cola. Season with salt and pepper to taste. Let sit for at least 30 minutes."

Do i drain everything before or after I let it cook for 6-8 hours?