Fermented black beans are sold dried or soaked in brine.  Commonly used on humba, adobo, paksiw na pata etc.

Hunt’s is the #1 brand of Pork & Beans in the Philippines. It is made from high quality Great Northern Beans
and real pork bits covered in rich, thick, sweet tomato sauce. It’s packed with nutritious beans which are a
good source of fiber for digestion, and delicious tomato sauce – a natural source of lycopene – for a healthy
heart! Add Hunt’s Pork and Beans for a veggie yummy breakfast!
Make your menudo, caldereta more delicious and tastier!