Assalamu alaikum Warahmatullahi Wabarakatuh

Fiqhi Rulings do not apply to things which 'may have' occurred. They only apply to definite occurrences.


Even if pork had come into contact with with utensils or devices like
food processors, once they are purified with water (washing thoroughly
and making sure all impurities are visibly removed), it is pure to use
hence would be permissible to buy and use.

Please see the following link(s):

Waswasah and Mashboooh
http://www.gmwa.org.uk/foodguide2/viewquestion.php?foodqid=134&catID=1&compID=1


Wassalam.