There are many different ways to separate the tobacco from solvent
(now an extract) once the extraction process is complete. A coffee filter and funnel, A nylon mesh "nut milk bag" and funnel, an Aeropress with filters, a potato ricer with either coffee or nut bag filter...etc. Personally, I prefer using a canning funnel and nut milk bag.
A few years ago while helping someone understand this step of the process I took some pics showing how to use a coffee filter and funnel. Put a coffee filter inside the funnel and place the funnel inside a clean jar.
Pour as much of the loose extract as you can through the filter before dumping the saturated tobacco in. When all the loose extract has filtered through start dumping the saturated tobacco in the filter. Don't fill the coffee filter more than half full of tobacco, if there's still tobacco left use a second filter once you're done with the first one. After dumping the tobacco in, allow time for any loose extract to filter
(drip) through.
Once the loose extract has dripped through, gather the top edge of the coffee filter folding it down over the tobacco to encapsulate it.
Taking the encapsulated tobacco in hand, holding it over the funnel, gently squeeze it to wring out the absorbed extract. Slowly increase pressure until you've recovered as much extract from the tobacco as possible.
For extractions using PG as the solvent, allow the separated extract to sit in a sealed jar for at least a week before performing the "final" filtration. This allows natural oils time to coalesce enhancing the filter's ability to catch/remove them.
For people who want to keep their hands clean, a potato ricer or Aeropress can be used to recover
(squeeze) extract from the saturated tobacco.
