Remove ribs from the sous vide bag. Preheat oven to 140°C / 285°F. Wrap the ribs in foil, adding a splash of apple juice, broth, or BBQ sauce inside. Place on a tray and heat for 20–30 minutes.
Optional: Unwrap for the last 5 minutes to crisp up the bark.
The internal temperature should reach 65–70°C / 150–160°F.
Pro tip: For sticky, glazed ribs, brush with BBQ sauce halfway through heating.