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Balance Funnel / KITCHEN

Balance Funnel
Balance Funnel

Original funnel occurs in the liquid inside the bottle pressure increases, which affects the speed of the liquid into the bottle.And this design, through the missing part on the edge of the funnel, provides the airflow through the channel, so as to avoid pressure caused by the uneven obstruction.
When using a conventional funnel, the pressure in the bottle always blocking the funnel's mouth, make the liqiud difficult to enter in the bottle.How to make the oressure balance?

University

ZhengZhou University of Light Industry

ZhengZhou University of Light Industry
ZhengZhou, China

Xin Zhao,
ZhengZhou University of Light Industry