If traveling economy, consider pay-per-use Frankfurt lounges in Terminal 2; they provide essentials like snacks, drinks

https://www.animenewsnetwork.com/bbs/phpBB2/profile.php?mode=viewprofile&u=1202780

If traveling economy, consider pay-per-use Frankfurt lounges in Terminal 2; they provide essentials like snacks, drinks, Wi-Fi, and showers.