Following the rabbit hole leads to this wiki[0] which points to this "homebrew source"[1] which says, under Laboratory equipment -> Learn more: "Although it is

Following the rabbit hole leads to this wiki[0] which points to this "homebrew source"[1] which says, under Laboratory equipment -> Learn more: "Although it is theoretically possible to make a 'low-cost' production (using only a 5mL syringe, a spinning top filter, a kitchen scale and a pressure cooker), the reproducibility and the quality will not be desired." [0] https://diyhrt.wiki https://diyhrt.wiki [1] https://oelabs.co/en https://oelabs.co/en