אני לא אוהבת את התבלין הזה, כי הטעם שלו חזק מדי.

Because the speaker is female. In the present tense, Hebrew forms like אוהב / אוהבת agree with gender.

• אני לא אוהבת = I do not like... (said by a woman)
• אני לא אוהב = I do not like... (said by a man)

Sometimes Hebrew does leave them out, but in the present tense the verb form does not clearly show person, only gender and number.

So אוהבת could mean:

• I like (female speaker)
• you like (to one female)
• she likes

That is why אני helps make the meaning clear. In context, native speakers may still omit it, but including it is very normal.

לא is the regular word for not. It comes before the verb or phrase it negates.

• אני אוהבת = I like
• אני לא אוהבת = I do not like

A common learner point: לא is used to negate verbs, adjectives, and whole statements. It is different from אין, which is mainly used for there is not / there are not / do not have.

Here, את is the direct object marker. It usually has no English translation.

Hebrew uses את before a definite direct object.
In this sentence, התבלין הזה means this spice, which is definite/specific, so את is required.

Compare:

• אני אוהבת את התבלין הזה = I like this spice
• אני אוהבת תבלין חריף = I like a spicy spice / spicy seasoning

In the second example, the object is indefinite, so there is no את.

In Hebrew, demonstratives like this usually come after the noun.

So:

• התבלין הזה = this spice

Not:

• הזה תבלין

Also, the noun is normally definite:

• הספר הזה = this book
• הילד הזה = this boy
• התבלין הזה = this spice

The demonstrative must also agree with the noun in gender and number.

Because the phrase means this spice, which is definite.

In Hebrew, when you say this/that + noun, the noun is usually marked as definite with ה־:

• התבלין הזה = this spice
• הילדה הזאת = this girl

So the ה־ here is the regular definite article, like the in English.

Yes, שלו can mean his, but it can also mean its, depending on context.

Hebrew does not always separate his and its the way English does. So in this sentence:

• הטעם שלו = its taste / the taste of it

Since שלו refers back to התבלין (the spice), the natural English translation is its.

This is a very common Hebrew way to show possession:

• הטעם שלו = its taste / the taste of it

Literally, it is something like the taste of it.

Hebrew also has shorter attached possessive forms in some cases, and a more compact form here could be טעמו. But in everyday modern Hebrew, הטעם שלו sounds very natural and common.

Because טעם is a masculine singular noun, and adjectives must agree with the noun they describe.

• טעם חזק = a strong taste
• הטעם שלו חזק מדי = its taste is too strong

If the noun were feminine singular, the adjective would usually be feminine too.

מדי means too or overly/excessively.

In Hebrew, מדי usually comes after the adjective or adverb:

• חזק מדי = too strong
• יקר מדי = too expensive
• מהר מדי = too fast

So although English says too strong, Hebrew says the equivalent of strong too.

כי here means because.

It introduces the reason:

• אני לא אוהבת את התבלין הזה = I do not like this spice
• כי הטעם שלו חזק מדי = because its taste is too strong

So the whole sentence gives a statement and then the reason for it.

The verb לאהוב can cover both love and like, depending on context.

With food, drinks, spices, music, hobbies, and similar things, it often translates naturally as like:

• אני אוהבת קפה = I like coffee
• אני אוהבת את התבלין הזה = I like this spice

In more emotional or personal contexts, it may be translated as love. Context tells you which English word sounds best.