Use the search function. This question gets asked every week 🙄

Well they were designed to break apart solid rocks so if you used it on soft tissue you misused the device in a way it wasn't built for and deserve to keep it that way as a reminder to your stupidity.

Next time use an electric handheld bone saw to break apart a corpse you silly fuck.

Parts cleaner should do.

Use a straw to suck it empty

Easy use isopropal alchohol or put it in the dishwasher