Learn Danish: Hver ingrediens hakkes. - Every ingredient is chopped.

You form the present tense s-passive by adding an -s to the infinitive of the verb. The infinitive here is hakke (to chop), so it becomes hakkes (is chopped). A common mistake is trying to add the -s to the active present tense hakker—always use the infinitive!

Could I use the "bliver" passive here and say bliver hakket?

Yes, hver ingrediens bliver hakket also means "every ingredient is chopped" and is grammatically correct. However, the s-passive (hakkes) is the standard choice for written instructions, like recipes or manuals. The bliver passive is more commonly used in spoken Danish to describe a specific action happening right now.

Why do we use hver instead of hvert or alle?

Hver means "each" or "every" and is used with singular common-gender nouns (en-words), like en ingrediens. If the noun were neuter (an et-word, like et æble), you would use hvert. You wouldn't use alle (all) here because that would require the plural noun form: alle ingredienserne.