Kai Havertz and Karim Bellarabi had already gone close when a rampant Leverkusen took a deserved lead, courtesy of an unstoppable long-range strike from Volland. Freiburg could not get out of their own half as Panagiotis Retsos went within a whisker of a debut goal, before Charles Aranguiz crashed in the sweetest of volleys for Bayer's second. Alexander Schwolow did well to keep out Havertz, but was powerless to prevent Volland sliding in Lars Bender's teasing right-wing cross to extend the hosts' advantage.
It should have got better for Freiburg before it got worse as Marco Terrazzino spurned a glorious opening to reduce the arrears early in the second half. It did not take Bayer long to reassert their authority on the contest, though, with the lively Bellarabi twice going close to a fourth. Volland thought he had completed his hat-trick with 20 minutes to go, but the goal was chalked off following consultation with Video Assist. Julian Brandt got in on the act to complete the whitewash, leaving Freiburg still searching for their first win of the 2017/18 Bundesliga season.
Man of the match
Germany's forgotten striker? Not any more! Volland put in by far his most efficient display since joining Leverkusen from Hoffenheim in summer 2016. Joachim Löw, take note!
- Volland scored his first brace in a Leverkusen shirt.
- Aranguiz's fifth Bundesliga goal was his first from distance.
- The Bender twins - Lars and Sven - played together at club level for the first time since 2009, and first time in the Bundesliga.
- Leverkusen head coach Heiko Herrlich had been waiting 13 Bundesliga games for a win (10 games with Bochum, three with Bayer).
- Freiburg are one of three clubs without a win this season (Cologne and Werder Bremen are the other two).
- Liverpool-owned Freiburg midfielder Ryan Kent became the tenth Englishman to play in the Bundesliga. Leicester loanee Bartosz Kapustka also made his debut in the second half.
Watch: Charles Aranguiz on Leverkusen's big win over Freiburg
Leverkusen: Leno (c) - Retsos, L. Bender (Henrichs 63'), S. Bender, Wendell - Kohr (Baumgartlinger 79'), Aranguiz - Bellarabi (Mehmedi 71'), Brandt - Havertz, Volland
Coach: Heiko Herrlich
Freiburg: Schwolow - Kübler, Lienhart, Söyüncü, C. Günter (c) - Höfler, Abrashi (Frantz 28') - Kleindienst (Kent 46'), Terrazzino (Kapustka 69')- Haberer - Niederlechner
Coach: Christian Streich