yes, i also puzzle why i can't produce nice bean sprouts. it has something to do with temperature (20-25C), water (non-chlorinated) and quality of beans. at least that's how the theory goes. i have more success with mung bean sprouts. soy beans are hopeless for me. i also use a kettle and it takes about a week to 'harvest' mung bean sprouts. they look nothing like miracle-gro fed plants but quite decent. good luck.