La macinatura cambia, allora controlliamo la pressione di estrazione.

Macinatura is the noun from macinare (to grind). In a coffee context, it usually means the grind or the grind size / grind setting.

So in this sentence, la macinatura cambia means something like:

• the grind changes
• the grind size changes
• the grind setting changes

Italian often uses a noun where English might use a shorter technical expression.

Italian uses definite articles (il, la, i, le, lo) more often than English does.

Here, la macinatura refers to the grind as the known relevant factor in the situation. Even when English might say just grind in a technical context, Italian often prefers the + noun.

So:

• la macinatura = the grind / the grind setting

This does not necessarily mean one very specific grind has already been mentioned. It can simply be the normal Italian way to talk about that parameter.

Cambia is the 3rd person singular present tense of cambiare (to change).

The subject is la macinatura, which is singular, so the verb must also be singular:

• la macinatura cambia = the grind changes / is changing

This present tense can sound a bit flexible in English. Depending on context, it may mean:

• changes
• is changing
• has changed (in some practical, spoken contexts this idea may be implied, though grammatically it is still present tense)

Because Italian normally drops subject pronouns when the verb ending already makes the subject clear.

Controlliamo already tells you the subject is noi (we), because -iamo is the we ending for many -are verbs.

So:

• controlliamo = we check / we are checking / let’s check

Adding noi is possible, but it would usually add emphasis or contrast:

• Noi controlliamo... = We check... / We’re the ones who check...

It can mean either, depending on context.

Grammatically, controlliamo is simply we check / we are checking. But in practical speech, especially in instructions or collaborative situations, it can also sound like:

• let’s check

So this sentence could feel like:

• The grind changes, so we check the extraction pressure.
• The grind has changed, so let’s check the extraction pressure.

Italian often uses the same form where English might choose between a plain statement and a suggestion.

Here allora means something like:

• so
• then
• in that case

It connects the two ideas:

• La macinatura cambia = the grind changes
• allora controlliamo... = so/then we check...

Be careful: allora can also have other uses in Italian, such as a filler word in conversation, but here it is a logical connector.

The comma helps separate the two linked parts of the sentence:

• La macinatura cambia
• allora controlliamo la pressione di estrazione

In English, this is similar to writing:

• The grind changes, so we check the extraction pressure.

In Italian, punctuation with words like allora can vary a little depending on style, but this comma is very natural and helps show the logical pause.

It is a noun + di + noun structure, which is extremely common in Italian.

• pressione = pressure
• di estrazione = of extraction

So literally it is:

• pressure of extraction

But in natural English, that often becomes:

• extraction pressure

Italian often uses di where English prefers a noun used like an adjective.

Other similar examples:

• tempo di cottura = cooking time
• camera di combustione = combustion chamber
• macchina da caffè = coffee machine

Because di + noun without article often gives a general category or technical label.

So:

• pressione di estrazione = extraction pressure as a general concept/parameter

If you said pressione dell’estrazione, that would sound more like:

• the pressure of the extraction
• referring to one specific extraction event

In technical or procedural language, Italian very often prefers the article-less form after di.

Yes, absolutely.

You could also say:

• Allora controlliamo la pressione di estrazione.

That would sound very natural too.

The version you have:

• La macinatura cambia, allora controlliamo la pressione di estrazione.

puts the cause first and then the consequence.

Putting allora first can make it sound a little more like a reaction or next step in a process.

It sounds neutral to practical/technical. It is not especially formal, but it is also not slangy.

Words like:

• macinatura
• pressione di estrazione

make it sound specialized, probably about coffee preparation or machine adjustment. But the grammar itself is straightforward, everyday Italian.

So the sentence feels like something you might hear:

• in a training context
• in a café
• in a technical explanation
• during troubleshooting

Yes. Verifichiamo would also work in many contexts.

Very roughly:

• controlliamo = we check
• verifichiamo = we verify / we check

Controllare is very common and natural in everyday speech. Verificare can sound slightly more technical or deliberate.

So:

• allora controlliamo la pressione di estrazione = very natural
• allora verifichiamo la pressione di estrazione = also natural, perhaps a bit more technical

A helpful approximation is:

con-trol-LYAH-mo

A few key points:

• the gli here is not present; the sound comes from -lia-
• the stress falls on -ia-: controlliàmo
• ll is pronounced clearly, unlike in English where l can get weaker

So try:

• con-trol-LYAH-mo

And for the whole sentence, a rough guide is:

La ma-chee-na-TOO-ra CHAN-ja, al-LO-ra con-trol-LYAH-mo la pres-SYOH-ne dee e-stra-TSYO-ne.

Yes. Italian present tense is quite broad.

This sentence could describe:

• something happening right now
• a habitual procedure
• a general rule

So it might mean:

• The grind changes, so we check the extraction pressure.
  (general procedure)

or

• The grind is changing, so we’re checking the extraction pressure.
  (current situation)

Context tells you which reading is intended.