Australia; VIC; QLD
The amount of cannabis used in joints (purely cannabis), spliffs (cannabis and tobacco), and cones (pipes or bongs) in Australia varies a lot based on an individual's own preparation techniques, according to Australian research. The study asked 31 people to roll joints, spliffs or pack cones using oregano instead of cannabis. They found that the amount of oregano used in joints varied a lot, ranging from 0.04–0.41g in cones, 0.10–1.25g in spliffs, and 0.12–1.21g in joints. When people were asked to repeat the task but this time imagining they were using higher or lower potency cannabis, they found the quantity of cannabis used varied with its perceived potency, However, the adjustment wasn't proportional to the actual change in THC dose. They also found that people who used cannabis daily used over three times as many grams in a joint than people who used cannabis less than daily.
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