The day before, mix coffee, sugar, lime zest, paprika, sea salt and cayenne pepper. Dab the meat dry and rub it with the spice mixture from both sides. Place the meat in a freezer bag, press out air and seal, then place the meat in the refrigerator.
The next day at the grill, push the burnt coal to one side. Take the meat out of the bag and place it on the side of the grill without the charcoal. Cover the entire grill with aluminium foil and grill indirectly for 1 1⁄2-2 hours. If you have a kettle grill, you grill with a lid instead of foil. Cut meat into slices and garnish with lime wedges.
Tip: Mortar spices! If you crush the mixture finely in a mortar, you will get even more aroma from the spices