This method is primarily used for storing late-maturing varieties such as longan and pink taro. It involves setting up wooden poles in a basement, with horizontal bamboo poles or iron wires placed on the columns. The grape clusters are then hung from these structures. It is recommended to use the single spike hanging method, where each cluster is individually suspended. When applying this technique, it's important to pick the grapes at the ear, leaving about 10-15 cm of the main stem above the leaves. This helps in easy hanging and also aids in moisture retention while preventing stem dripping.
The single spike suspension method offers excellent ventilation and heat dissipation, reducing the risk of damage caused by overcrowding. As a result, the storage duration is significantly extended. To minimize the occurrence of fungal rot, it's necessary to burn sulfur once every 10 to 14 days. The recommended amount is 1.5 to 2 grams of sulfur per cubic meter of the basement space. However, it's crucial to note that sulfur burning should not be done simultaneously with the storage of pears and apples, as sulfur dioxide can cause damage to these fruits. Therefore, it's best to separate the storage of different fruit types to ensure optimal preservation and quality.
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