The process of harvesting goji berries requires careful attention to timing, handling, and drying conditions. After the flowers fall, the fruit begins to develop into small green berries, which gradually turn orange and then bright red as they mature. The best time to pick is when the fruit becomes slightly soft and loose, indicating full maturity. If picked too early, while still orange, the dried berries may turn yellow, reducing their quality and market value.
It's important not to harvest when the fruits are wet. Avoid picking in the morning when dew is still present or after rain if the fruits haven't dried. Wet berries tend to stay moist for a long time, increasing the risk of bacterial contamination during the drying process.
Gentle handling is crucial. Berries should be picked carefully to avoid bruising or crushing. Use containers like baskets, buckets, or wooden pots—avoid plastic bags that can cause pressure or impact damage. Bruised berries often turn black after drying, affecting both appearance and quality.
Avoid exposing the berries directly to intense sunlight immediately after sunrise. Instead, start with low light and gradually increase the intensity and temperature. This helps maintain a vibrant red color. Picking them at midday under strong sun may cause the color to darken, making the final product less appealing.
Timely drying is essential. Once harvested, the berries must be dried quickly, not left to sit for long. Freshly picked berries have high respiration rates, leading to sweating and overheating if not processed promptly, resulting in dull, unattractive dried fruit.
During the drying process, avoid turning the berries. Turning them can damage the flesh, causing discoloration and black spots after drying. Once the berries are aired, leave them undisturbed until fully dry.
Lastly, avoid fumigation with sulfur. Although it may temporarily preserve the color, it introduces harmful chemicals and reduces the natural quality of the fruit. To achieve premium quality, focus on proper harvesting, handling, and drying techniques without chemical additives. This ensures a high-sugar, non-polluted, and visually appealing product.
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