I’ve tried numerous ways to speed up the process of trimming the stem ends from beans. Honestly, there is no quick and easy way. Only the stem end needs to be trimmed off. The tip end is tender and perfectly fine to eat. You can do them one by one and enjoy the zen of it, line several of them up on a cutting board and cut the ends, grab two or three at a time and break the stem end off with your other hand, or grab two or three from your pile where you see stems together and snip them with kitchen shears.