ganjangeul jogeum neoheumyeon guk masi deo jinhaejyeoyo.

-을/를 is the object particle in Korean. It marks the thing that the action is done to.

• 간장 = soy sauce
• 간장을 넣다 = to add soy sauce

So in this sentence, 간장을 shows that soy sauce is the thing being added.

조금 means a little or a small amount.

In this sentence:

• 간장을 조금 넣으면 = if you add a little soy sauce

좀 is a very common shortened, more conversational form of 조금. So these are both natural:

• 간장을 조금 넣으면
• 간장 좀 넣으면

The full form 조금 can sound a bit more neutral or slightly clearer, while 좀 is very common in everyday speech.

넣으면 comes from:

• 넣다 = to put in, add
• -으면 / -면 = if / when

So 넣으면 means if you add it or when you add it.

In Korean, this conditional form often covers both English ideas:

• If you add a little soy sauce...
• When you add a little soy sauce...

The exact English translation depends on context, but here if is the most natural choice.

Because the sentence is specifically talking about the taste of the soup, not the soup as a whole.

• 국 = soup
• 맛 = taste, flavor
• 국 맛 = the taste/flavor of the soup

So:

• 국 맛이 더 진해져요 = the soup’s flavor becomes richer/stronger

If you said 국이 더 진해져요, that could sound like the soup itself becomes thicker/darker/stronger, which may be understood differently depending on context.

-이/가 is the subject particle.

Here, the thing that is becoming richer/stronger is 국 맛:

• 국 맛이 더 진해져요
• As for the soup’s flavor, it becomes richer/stronger

So 맛이 marks taste/flavor as the subject of 진해져요.

더 means more.

So:

• 더 진해져요 = becomes more rich/strong/stronger

It shows a change in degree. The flavor is not just strong; it becomes stronger than before.

진해져요 comes from:

• 진하다 = to be thick, deep, rich, strong
• -아/어지다 = to become

So:

• 진하다 = to be rich/strong
• 진해지다 = to become rich/strong
• 진해져요 = polite present form of 진해지다

In food contexts, 진하다 often means:

• rich in flavor
• strong-tasting
• deep
• full-bodied

So 국 맛이 더 진해져요 means the soup’s flavor becomes richer/deeper/stronger.

Because 진해져요 emphasizes change.

• 진해요 = it is rich/strong
• 진해져요 = it becomes rich/strong

This sentence is about what happens after adding a little soy sauce, so the become meaning is important.

Compare:

• 국 맛이 진해요. = The soup tastes rich/strong.
• 간장을 조금 넣으면 국 맛이 더 진해져요. = If you add a little soy sauce, the soup’s flavor becomes richer.

Yes, the meaning is basically the same: the taste of the soup.

• 국 맛 = soup taste / the taste of the soup
• 국의 맛 = the taste of the soup

But 국 맛 is much more natural and common in everyday Korean. Korean often uses noun + noun combinations like this instead of 의.

Similar examples:

• 커피 맛 = coffee flavor
• 음식 맛 = food taste/flavor

So 국 맛 sounds very natural here.

It can do either, but in this sentence it most naturally sounds like a general tip or general result.

• 간장을 조금 넣으면 국 맛이 더 진해져요.
• If you add a little soy sauce, the soup tastes richer.

This sounds like something you might say while cooking or giving advice.

Korean -으면 / -면 is often used for:

1. general truths or usual results
2. specific future conditions

Here it feels like a general cooking observation.

Here, 간장 definitely means soy sauce.

Be careful, though: in other contexts, 간장 can also mean liver when written with different Chinese-character origins, but in everyday Korean and especially in a cooking sentence like this, 간장 almost certainly means soy sauce.

Context makes it clear:

• 간장을 조금 넣으면 = if you add a little soy sauce

Yes, this sentence is in the polite informal style, often called -요 style.

• 진해져요 is polite and very common in everyday conversation.
• It is appropriate for normal conversation, cooking instructions, and friendly explanations.

Other possible styles:

• 진해진다 = plain style
• 진해집니다 = formal polite style

So this sentence is polite, natural, and conversational.