Embodiments of the present invention relate to a sap concentration apparatus which separates treated water from sap, and concentrates the sap. The purpose of the present invention is to provide a sap concentrating apparatus which is capable of concentrating sap more efficiently by a method different from an existing method. A sap concentrating apparatus according to an exemplary embodiment of the present invention comprises: a precipitation filter which receives sap to discharge filtered water a reverse osmosis membrane filter which receives the filtered water to discharge treated water to a first outlet, and which concentrates the filtered water to discharge concentrate water to a second outlet at least one low temperature sterilizer which is disposed between the precipitation filter and the reverse osmosis membrane filter and a flow control unit which controls a flow amount of the treated water or the concentrate water discharged through the outlets to control sugar content of the concentrate water.COPYRIGHT KIPO 2016본 발명의 일 실시예에 따르는 수액 농축장치는, 수액을 공급받아 여과수를 배출하는 침전필터 상기 여과수를 공급받아 제1배출구로 처리수를 배출하고, 제2배출구로 상기 여과수를 농축하여 농축수를 배출하는 역삼투 멤브레인 필터 상기 침전필터와 상기 역삼투 멤브레인 필터 사이에 배치되는 적어도 하나 이상의 저온 살균기 및 상기 농축수의 당도를 조절하도록, 상기 배출구들을 통해 배출되는 상기 처리수 또는 상기 농축수의 유량을 조절하는 유량조절부를 포함한다.
