If this year's crop was more plentiful than expected, you will have to come up with a way to keep excess butter beans and string beans from going bad before it comes time to cook them up. Since there's probably too many for you and your family to consume all at once, freezing them is a safe way to store your string and butter beans until you're ready to use. Prepping these beans for freezing is well worth the minimal effort it takes to ensure a future supply that lasts.
Wash the beans by placing them into a colander and running water over them to remove any dirt.
Snap off the ends of string beans on both sides with your fingers and discard them. Shell butter beans by twisting the pods with both hands to break them open and extracting the beans with your fingers. Discard the pods.
Fill a large pot halfway full with water to leave room so it won't boil over.
Bring the pot of water to a boil and pour the beans into it, being careful not to splash any of the hot water onto yourself.
Allow the beans to boil for three minutes.
Empty the contents of the pot into a colander to drain the beans.
Dump the beans into a bowl of ice water to cool them down and stop the cooking process.
Allow the beans to sit in the ice water for two to three minutes.
Drain the beans again using the colander.
Allow the beans to sit in the colander to drain out as much of the moisture as possible before placing them in airtight plastic bags to go into the freezer.