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Directional flow

Directional flow (not to be confused with directional airflow) is a method of folding parchment paper to control the flow of oil from pressing flower or hash into rosin. This practice helps ensure rosin isn’t wasted and doesn’t clog up the press or dirty surfaces. 

“I collect more rosin from a press when I use directional flow.”

“Directional flow helps prevent making a huge mess when pressing rosin.”

What is directional flow?

Rosin is made by compressing cannabis flower or hash between heated plates, which produces an oily substance that will cool and become rosin. The process can be messy and rosin can be easily wasted. Directional flow, also called directional fold, is a method of folding parchment paper to prevent released rosin from escaping. 

Before pressing material, parchment paper is folded into a square or rectangular envelope. Parchment is typically folded in half multiple times and in multiple layers and directions so rosin can’t escape.   

Is directional flow the same as directional airflow?

No, the two processes are not comparable despite having similar names. Directional flow refers to a method of maximizing rosin press yields by folding parchment paper, while directional airflow describes a feature in some carb caps that can optimize a dab’s placement and exposure to heat so concentrate is not wasted.