If local options are unavailable, several online vendors ship frozen or fresh pork blood directly:
: An online Asian grocery service that delivers frozen pork blood products like Martin Purefoods . Culinary Context where to buy pigs blood
: Local shops that process their own meat may sell fresh blood by the pint or gallon. It is best to call ahead and ask specifically for "culinary pork blood". If local options are unavailable, several online vendors