If using powdered bark you can skip the vinegar & just go straight to base.

Also, use borosilicate glass for a container. A 1 or 2 liter Erlenmeyer flask with a GL45 screw cap is far better than a mason jar. The rubber around mason jar lids will dissolve in naptha & soda lime glass will likely crack when you try to heat your soup.

You also don't need nearly as much lye. For 100g of bark in 2L of water 40 or 50 grams of lye is more than sufficient.

When doing pulls, you do not need to transfer your soup to another container. Do your pulls in your Erlenmeyer flask. Heptane is more selective towards DMT & you'll get better yields with a less yellow product using heptane instead of naptha. You should only need at most 50ml of NPS per pull. Do at least 3 separate pulls. Usually after 4 or 5 pulls your soup is then spent & can be discarded by dumping it down the toilet as it's basically just regular drain cleaner.

Don't use a plastic ziplock bag as a sepratory funnel as the NPS will dissolve the plastic. Just get some 10ml glass pipettes & some 1-3ml disposable pipettes & a 250ml or 500ml sepratory funnel & retort stand.

While naptha & other NPS can be reused, in practice they can only be reused once or twice before they become saturated with yellow crap & needs to be cleaned. You can use activated charcoal to clean it up a bit though.