Baking soda may not always be readily accessible, but where it is adding about a teaspoon of baking soda to a liter of water also dramatically cuts down bean cooking time from dry. Possible to cook chickpeas in ~45 mins to an hour, instead of 2 or 3 (in my experience), and you don’t have to remember as far ahead of time as with soaking.
Otherwise, I feel like a radio or sms campaign in areas with high access to those resources would be a pretty cheap way to disseminate this info.
Really interesting overview! I’m surprised there wasn’t more study focusing on France and Belgium, given how politically important immigration has been in those countries for the last decade +