Do canned beans need a hechsher?

Answer: Yes (cRc, OK).

Reason: Canning uses high heat, and the same equipment may be used for non-kosher products.

Source:

• cRc: canned beans require certification.
• OK: all canned products should have a reliable kosher certification; the canning process uses high heat, and non-kosher items may be made on the same equipment.

Related questions:

• Do dried beans and lentils need a hechsher? No (Star-K, cRc).
• Do canned fruits and vegetables need a hechsher? Yes (OK).

References: cRc (askcrc.org), “Beans, canned” · OK, Consumer FAQ