If great northern soup beans have be soaking for a day and half would they still good?

It's unlikely that Great Northern beans soaked for a day and a half would still be good. Here's why:

* Bacteria Growth: Beans, like any other food, are susceptible to bacterial growth, especially when left in water for an extended period. While soaking helps soften the beans, it also creates a warm, moist environment that bacteria thrive in.

* Spoilage: After a day and a half, the beans may start to develop an off-odor or taste, indicating spoilage.

* Safety: Eating spoiled beans can cause food poisoning, leading to unpleasant symptoms like nausea, vomiting, and diarrhea.

Recommendation:

It's best to discard the beans if they've been soaking for a day and a half. It's always safer to err on the side of caution when it comes to food safety.

If you're looking for a quick soak for your beans, you can typically get away with soaking them overnight (8-12 hours). If you forget to soak them in advance, you can often cook them directly in the pot, though it will take longer.