Neither pineapple nor grapes are considered citrus fruits! There are some common misconceptions about them, but here’s why they fall outside the citrus category:

Citrus Fruits:

• Belong to the family Rutaceae, characterized by the presence of essential oils in their rinds and a specific chemical profile.
• Typically have a high vitamin C content.
• Examples include oranges, lemons, limes, grapefruits, mandarins, and tangerines.

Pineapple:

• Belongs to the family Bromeliaceae, known for their spiky crowns and fleshy fruits.
• Contains bromelain, a different enzyme than the citric acid found in citrus fruits.
• While rich in vitamin C, its composition and origin differ from true citrus fruits.

Grapes:

• Belong to the family Vitaceae, known for their vine-like growth and clusters of berries.
• Contain tartaric and malic acids, distinct from the citric acid in citrus fruits.
• Have moderate vitamin C content, but again, from a different source than citrus fruits.

So, while both pineapple and grapes share some features like sweetness and tangy flavors, they lack the key characteristics of citrus fruits.

Remember, citrus fruits are a specific group with unique botanical and chemical properties. Fruits like pineapple and grapes, despite their deliciousness, simply belong to different families with their own distinct characteristics.