Beyond the result, the outing offered a first look at new arrivals Justin de Haas and Aliou Dieng in Valencia colours, gave Mouctar Diakhaby his first minutes since last season's injury, and produced a standout debut for Ryunosuke Sato, who marked the occasion with a stunning goal.
Valencia struggled to take control in the first half against an Eldense side driven by energy and endeavour, with Guillermo Macho influential in midfield. JesĂșs VĂĄzquez fired over from a good position, and Manu Nieto forced a save from Vicent Abril, before a marking error from Claudio BarragĂĄn's side left Ryunosuke Sato unmarked in the semicircle.
The Japanese forward made no mistake, controlling with his left foot before finishing first-time with his right, curling the ball into the top corner in spectacular fashion.
The goal opened the floodgates for a one-sided spell that JesĂșs VĂĄzquez took full advantage of soon after, continuing to show his attacking qualities. The left-back pounced on a loose ball that had rebounded off the post following a deflection off an Eldense defender to make it 2-0. By that point, the newly-promoted side were struggling to find any foothold in the game. Umar Sadiq then turned provider, setting up Daniel Raba to make it 3-0 by half-time, after the striker had already seen a goal ruled out for offside.
Eldense improved after the break and thought they had pulled one back through a fine finish from Cristian Amarillo, following a strong save from Vicent Abril, only for the effort to be ruled out for offside. It might have given the home side more belief had it stood, though Eldense waited to make their changes.
Carlos Corberån used the opportunity to introduce Aliou Dieng and Pepelu together in midfield, brought André Almeida on down the right - a position, alongside left-back, that Valencia are looking to strengthen - and pushed Javier Guerra further forward alongside Hugo Duro. The Gilet-born midfielder wasted two clear late chances, denied on both occasions by good saves from goalkeeper Juan Palomares "Juanpa".