This is a hidden lot modifier – which means it won't take up one of the user-facing lot traits you can choose. All you need to do is simply place it on your lot and the ‘Kiss of Fresh' modifier is applied to all the consumables & flower arrangements on that lot!
Sims autonomously use the espresso bar on community lots (retail, park, museum, pool, library, artscenter, spa, chalet gardens) if a barista is present.