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 cooked because the heat causes the starches and fibers in them to absorb water, which results in an expansion of their size. This rehydration process helps to soften the texture and make them easier to digest.
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.
When fruits and vegetables are dried, the water content is significantly reduced, causing them to shrink and lose their original shape. When these dried items are placed in water, osmosis occurs, allowing water to re-enter the plant cells. This rehydration process causes the cells to swell and regain their original structure, as the cell walls expand to accommodate the absorbed water.
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.
To convert dried beans to canned beans for a recipe, soak the dried beans in water overnight, then cook them in boiling water until they are tender. Drain the cooked beans and store them in a canning jar with water and salt. Process the jar in a pressure canner according to canning guidelines to create canned beans for your recipe.
Hot water generally gets absorbed faster by dried beans compared to cold water. This is because hot water molecules are more energetic and lead to quicker water absorption, softening the beans more rapidly.
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.
To quickly cook dried beans, you can soak them in water overnight or use the quick soak method by boiling them for a few minutes and then letting them sit for an hour. After soaking, rinse the beans and cook them in a pot with water for about 1-2 hours until they are tender. You can also use a pressure cooker to cook dried beans in a fraction of the time.
The ideal ratio of dried beans to cooked beans is typically 1:3. This means for every cup of dried beans, you should cook them with 3 cups of water. This ratio helps achieve the perfect consistency and flavor in your dish.
Lima beans absorb water because they are dried so when you put it in water it rehydrate
To cook dried garbanzo beans, first rinse them and soak them in water overnight. Then, drain the beans and place them in a pot with fresh water. Bring the water to a boil, then reduce the heat and simmer for about 1-2 hours until the beans are tender. You can also cook them in a pressure cooker for faster results.