Can I still use these?? (Food related)

[Newadventure]

I have some dried food in the cupboard that I have been meaning to get around to eating, I was planning on making some buckwheat to go along with dinner so I checked the pack and the best before was Nov 2017, I checked all the other ones and they were the same.. clearly my "meaning to get around to eating" has taken longer than I thought
There is;
Buckwheat
Quinoa
Black eyed beans (peas?? Or am I thinking of the band?)
Chick peas
Butter beans.

All "best before" Nov 2017.
They're dry and some unopened but no signs of anything nasty in the opened ones. They're dry anyway so, I can still eat these, yeah?? Or will they taste weird once cooked?

Anyone know?

Best before is not the same as Use By.

You'll be fine, if somewhat gassy.

Cous cous tastes horrible if it”s out of date, but the rest should ok.

I'd still use them - you might need to soak them for extra long though.

Great thanks