This is what I do:
1- Scrape as much as you can from the bottom, the grinders thread and the screen and place it into a baggy.
2- Fold the baggy till you have a tight package with all the pollen in in a small corner.
3- Tape the bag so it stays that way.
4- Wrap kitchen towel around it and tape around the baggy.
5- Run under the tap then wring out the water so its damp.
6- Microwave for 15 seconds.
7- Put pressure on the package (rolling pin, milk bottle, whatever)
8- Place in freezer
9- Unwrap after 20-30 min and pell away the baggy to reveal some hash.
Its good to bong or crumble into a joint.