Breakdown of Sciacquare la bottiglia prima di riciclare il vetro.
il vetro
the glass
la bottiglia
the bottle
la
her/it (direct object)
prima di
before (doing something) / before (a noun / point in time)
Questions & Answers about Sciacquare la bottiglia prima di riciclare il vetro.
Why is the sentence using the infinitive sciacquare instead of an imperative command like sciacqua or sciacquate?
This is the Jussive Infinitive (infinito iussivo). It is used for general, impersonal instructions where the command isn't directed at one specific person, but rather to anyone reading it. You will see this structure constantly on packaging, warning signs, and in recipes.
Why is it prima di riciclare and not prima che...?
Because the subject of both actions is the same (the implied general reader). When the subject doesn't change between the two parts of the sentence, Italian uses prima di + infinitive. You would only use prima che + subjunctive if a different person were doing the second action (e.g., "Rinse the bottle before I recycle the glass").
Why does "glass" translate to il vetro with the definite article here?
In English, we usually drop the article when talking about a material or substance in a broad, uncountable sense ("recycling glass"). In Italian, general categories, concepts, and materials almost always require the definite article, so it must be il vetro.