Garden Blog - Top Tropicals

Date: 31 Aug 2025

Zero Sugar fruit: forget lemonade - new perfect summer drink discovered!

Costa Rican Guava, Cas Guava - Psidium friedrichsthalianum

Zero Sugar fruit: forget lemonade - new perfect summer drink discovered!



🍋 Costa Rican Guava, or Cas Guava (Psidium friedrichsthalianum) is the boldest fruit you can grow for refreshing drinks. Its flavor is sharp, tangy, and unforgettable - perfect for anyone who loves acidic fruit. Cas Guava has sugar at all, unless you decide to add some.

🍋 The trees are super prolific - even young ones fruit heavily, and we make gallons of juice at Top Tropicals.

🍋 The best part? You can freeze the fruit or boil it into a concentrate with a bit of sugar. That drink lasts in the fridge for months without going bad, thanks to Cas Guava’s natural antibacterial punch.

🍋 Cas Guava juice is Costa Rica’s traditional Agua de Cas - tart, refreshing, and perfect for summer heat. And if you save enough, you’ll still be sipping it through the winter.

♨️ Agua de Cas Quick Recipe


We boiled this fruit and the drink lasted for months!

Boil halved fruits in water with sugar to taste
Simmer 5-10 minutes, let sit, then mash the softened fruit to release all the flavor
Strain through a colander, bottle, and refrigerate - just dilute with water when serving

✔️ Why choose Cas Guava?



• Packed with vitamin C - four times more than lemons - for a powerful immune boost.
• Rich in antioxidants to combat stress and inflammation.
• Hardy and low-maintenance, thriving in poor soils and resisting pests.

🛒 Grow your own Cas Guava

📚 Learn more:


What is the best fruit for summer drinks and wine?
•  What fruit is more sour and has more vitamin C than a lemon
•  What fruit can you drink? Costa Rican Cas is the Guava for Drinking
•  Costa Rican Guava

#Food_Forest #Recipes #Guava

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