It depends on the specific variety of gold kiwi. Zespri™ SunGold™ kiwis are known for their sweet, tropical taste and are not sour. However, other golden kiwi varieties may have a more tangy-sweet taste, indicating a degree of sourness.
Essentially, while gold kiwis generally tend to be sweeter than green kiwis, the "sourness" can vary based on the specific type you are eating. Look for Zespri™ SunGold™ for a consistently sweet experience.
