кофе - Wiktionary
2019-4-29 · Usage notes []. The word ко́фе is masculine, but is often informally treated as neuter: “горя́чее ко́фе”.Such usage is usually frowned upon by educated people. Since the lack of declension is inconvenient for some people, the diminutive forms of ко́фе, кофеёк (kofejók) or the dated/colloquial form ко́фий (kófij), are sometimes used.
