The present invention provides a device (100) for supplying a flow of agitated food containing particles in a liquid. The device (100) is A product tank (124) configured for buffering food, wherein the bottom (108c) of the product tank (124) is cone-shaped; A stirrer (110) is placed inside a product tank (124), and the stirrer (110) includes a shaft (118) extending along a main shaft (A) and a stirring device (126). Equipped with, The stirring device (126) comprises outer and inner
helical members (130, 132), The radii (R1, R2) of the outer and inner
helical members (130, 132) gradually increase from the bottom (130b, 132b) to the top (130a, 130b) of the outer and inner
helical members (130, 132). The bottoms (130b, 132b) of the outer and inner helical members (130, 132) are connected to the lower end of the shaft (118) via the respective first and second connecting members (134a, 134b). The outer helical member (130) is connected to the first connecting member (134a) at a first radial distance (D1) from the shaft (118), and the inner helical member (132) is connected to the second connecting member (134b) at a second radial distance (D2) from the shaft (118), where the second radial distance (D2) is shorter than the first radial distance (D1).