Butter will keep for a long time refrigerated. Up to 6 weeks. You can also freeze this product and it will keep for over a year.   Hi - I only accessed this question as I hâ¦ave just tried some butter I had in the fridge. It is now Sunday 14th June 2009.
Sperm can be stored inside the male body for approximately 3 weeks after they've matured, after which they die inside the body if not ejaculated. So the entire sperm life cycle inside a man's body if not ejaculated (10 week maturation time + 3 week storage lifespan) is approximately 13 weeks or about 3 months.
Produced in the seminiferous tubules, sperm mature as they move through the male reproductive system. Beginning in the seminiferous tubules, immature sperm travel through a seâ¦ries of long tubes to the epididymus. The epididymus is a narrow, tightly coiled tube that is attached to each testis.