they swell because the water and moisture that was removed during drying is being put back, so the water rehydrates the flesh
Dried fruits and beans swell when they are soaked in water because they are absorbing the water. The water causes the beans and fruits to become softer and plumper.
Dried fruits and dried beans swell when cooked in water because they reabsorb some of the water that was lost during the drying process.
what causes beans to swell overnight in water and the processs taken ?
you just answered your own question because they are dry so you are rehydrating them meaning your adding water (moisture ) be it from sauces or what ever of liquid you use.
All of them! Water is one of the building blocks of life so anything that was ever alive has water. That being said, without knowing the reason for your question, in a slow cook recipe most meat and fresh fruits and vegetables will generate some water. On the other hand, dried foods and those that "swell" when they cook, such as dried beans and rice will absorb water (although they already have a minimal amount of water in them.) Why do you ask?
Because they absorb the water they're in - which makes them swell up.
It's by a process known as 'osmosis' Basically, the outer covering of the bean is water permeable, and the 'seed' inside the bean is porous. Water is absorbed through the outer membrane, which swells the 'pulp' of the seed, causing it to swell.
Lima beans absorb water because they are dried so when you put it in water it rehydrate
because there's less water in it.
Raisins are just dried grapes, so when raisins are kept in water they re-absorb liquid (that they lost in the drying process). They swell to accommodate the new liquid.
You can soak the dried red beans overnight, then drain off that water and use new water to cook them in. You will then not have all that gas from cooking the beans.
Canned fruit, water,freeze dried , dried fruits n meats.
The beans absorb water while they soak overnight, so it will cut down the cooking time because, not only does the bean need to be hot, but it also must absorb enough water to be soft all the way through.
Many dried beans must be soaked overnight in cold water prior to cooking. After soaking, the beans can be cooked in boiling water. If the beans fall apart, you are cooking them too long.
Because dried beans are dehydrated and in order to be hydrated, they absorb the water. This process is called osmosis.