For Ayambil, canned beans are generally not allowed. Ayambil food is usually simple, tasteless, and prepared without oil, ghee, spices, sugar, milk, curd, fruits, or mixed/processed foods. Beans in canned form are also processed and usually contain seasoning or preservatives, so they do not fit the traditional ayambil discipline.

Plain packaged rice may be acceptable only if it is cooked in the ayambil way:

• plain boiled,
• no oil or ghee,
• no salt or spices if your tradition follows strict ayambil,
• and not mixed with any other ingredients.

In short:

• Canned beans: No
• Plain rice: Usually yes, if prepared strictly according to ayambil rules

Ayambil rules can vary slightly by tradition, city, and guru-parampara, so the strict local vidhi should be followed.