بوزن البن المطحون على الميزان.

It is mainly Egyptian Arabic. The biggest clue is بوزن.

In Egyptian, the prefix بـ is commonly used with the present tense, so بوزن means I weigh or I’m weighing. In Modern Standard Arabic, you would normally say أزن instead:

أزن البن المطحون على الميزان

The other words in the sentence are not strongly dialect-specific, so a learner of MSA would still recognize most of it.

بوزن comes from the verb وزن meaning to weigh.

In Egyptian Arabic:

• بـ = present/non-past marker
• وزن = the verb weigh

So بوزن means:

• I weigh
• I am weighing
• sometimes I usually weigh, depending on context

Arabic often packs tense and subject information into the verb itself, so one word can carry a lot of meaning.

Because Arabic often drops the subject pronoun when the verb already makes it clear.

So بوزن already tells you the subject is I.
You could say أنا بوزن if you want emphasis, contrast, or extra clarity, but it is not necessary.

Compare:

• بوزن البن المطحون = I weigh/am weighing the ground coffee
• أنا بوزن البن المطحون = I am weighing the ground coffee

The second version sounds more emphatic.

It can mean both.

In Egyptian Arabic, the present form with بـ often covers:

• simple present: I weigh
• present progressive: I’m weighing
• sometimes habitual: I usually weigh

The exact meaning depends on context.

So if someone is standing at the counter with coffee in front of them, بوزن البن المطحون على الميزان would naturally be understood as I’m weighing the ground coffee on the scale.

This is a very common question.

• البن usually refers to coffee beans or coffee as a substance/ingredient
• القهوة usually refers to coffee as a drink

So البن المطحون is a natural way to say ground coffee.

Examples:

• البن = coffee beans / coffee grounds / coffee as a product
• القهوة = a cup of coffee, the beverage

That is why المطحون fits especially well with البن.

Because in Arabic, adjectives normally come after the noun they describe.

So:

• البن المطحون = the ground coffee

Literally, the order is closer to:

• the coffee the-ground

That sounds strange in English, but it is completely normal in Arabic.

If an English speaker tries to put the adjective first, that will usually be wrong in this kind of phrase.

Because Arabic adjectives must agree with the noun they describe in definiteness as well as other features.

So if the noun is definite:

• البن = the coffee

then the adjective must also be definite:

• المطحون = the ground

That gives:

• البن المطحون = the ground coffee

If the noun were indefinite, the adjective would also be indefinite:

• بن مطحون = ground coffee / some ground coffee

This matching pattern is very important in Arabic.

Here it is functioning like an adjective, but it comes from a verb.

It is a passive participle from the verb طحن meaning to grind.
So مطحون literally means ground or that which has been ground.

In this sentence, it describes البن, so it works just like an adjective in English:

• البن المطحون = the ground coffee

So a good way to think about it is:

• form: derived from a verb
• job in the sentence: adjective-like description

على means on, and it is used because the coffee is being placed on the scale.

So:

• على الميزان = on the scale

This makes physical sense: the item sits on top of the scale while being weighed.

You may also hear بالميزان, which means something more like:

• with the scale
• using the scale

So the difference is roughly:

• على الميزان = focusing on placement
• بالميزان = focusing on the instrument

Both can be natural, but على الميزان strongly matches the image of putting something on a scale.

Because الميزان means the scale, while ميزان means a scale.

In many real-life situations, the speaker is talking about a specific, known scale, so the definite form is natural:

• على الميزان = on the scale

If you said:

• على ميزان

that would sound more like on a scale, which is less specific.

Arabic often uses definiteness when the object is already clear from the situation.

The sentence as written is a normal, straightforward order for Egyptian Arabic, but Arabic does allow some movement for emphasis.

The most neutral version is:

• بوزن البن المطحون على الميزان

You could move على الميزان earlier if you wanted to highlight the location or instrument, but that changes the emphasis rather than the basic meaning.

So for a learner, this is the safest takeaway:

• the sentence is natural as written
• Arabic word order is somewhat flexible
• but not every rearrangement sounds equally normal

In other words, learn this version first as the standard way to say it.