Questions & Answers about Il lunedì bevo tè caldo.
In Italian, to express habitual actions on specific days, you use the definite article + singular day.
• Il lunedì = on Mondays or every Monday.
It’s just how Italian marks repetition: the article turns a single day into a recurring event.
That’s perfectly correct but slightly more specific:
• un tè caldo = a (single) cup of hot tea.
• tè caldo (no article) speaks of tea habitually or generically.