Learn Portuguese (Portugal): Esta sopa é muito esquisita.

No, it is a false friend! In Portuguese, esquisito (and its feminine form esquisita) means 'weird,' 'strange,' or 'odd.' If you want to say the soup is exquisite or delicious, you would use a word like deliciosa or excelente.

Why is it é (from the verb ser) instead of está (from estar)?

We use é here because we are describing a fundamental characteristic of this specific soup. For example, maybe it is made with a very strange recipe. If you wanted to say the soup tastes weird just right now because something went wrong while cooking it today, you would use está.

Why use Esta instead of Essa?

Esta means 'this' and is used for things right next to the speaker, so the speaker is likely eating or holding the soup right now. Essa means 'that' and is used for things closer to the person you are talking to. Both are feminine to match sopa.

Since sopa and esquisita are feminine, why doesn't muito change to muita?