T/ZHDZ 006-2022 Active Group standards

T/ZHDZ 006-2022 Winter jujube harvest, grading, packaging, storage, and transportation technical regulations in Zhanhua

Publish Date: 2022-06-16 Implement Date: 2022-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZHDZ 006-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Terminology (principles and coordination and cooperation)

Publish Date: 2022-06-16

Implement Date: 2022-07-01

Scope

Main Technical Content: 3.1 Harvesting 3.1.1 Harvesting Time The best time to harvest Zhanhua winter dates is during the "fragile ripeness" stage, when the fruit skin turns completely red and the fruit flavor is at its peak. However, in production, the harvested fruits need to undergo transportation, sales, and storage/preservation processes. If they are not consumed immediately, it is advisable to harvest them earlier, as once the fruit surface turns completely red, it enters the late stage of fragile ripeness and will transition to overripeness within 2–3 days. Overripe Zhanhua winter dates will lose their freshness and crispness, resulting in a decline in quality. Therefore, it is ideal to harvest Zhanhua winter dates during the "red-tipped to semi-red" stage, typically in early to mid-October. The rule is to harvest one batch of fruit after it ripens. 3.1.2 Harvesting Methods Manual harvesting is recommended, following the principles of "light picking, gentle placing, avoiding squeezing, dropping, and maintaining fruit integrity." When harvesting, avoid yanking the fruit with your hands. Instead, grasp the fruit base with one hand while holding the fruit stem with the other hand to break it off. It is best to support the fruit with one hand while using fruit pruning shears to cut it at the stem-fruit stem junction. This not only prevents fruit-to-fruit friction but also preserves fruit integrity. For lower-canopy fruits, harvestors should stand on the ground and gently pick and clip them, placing them in containers. For upper-canopy fruits, harvestors should stand on high stools to avoid using methods like shaking, hand-pulling, or rod-vibrating that may damage the fruit. When emptying small containers into large boxes, always do so gently to minimize bruising. Avoid harvesting during morning dew, as this may cause fruit stem cracking. 3.2 Grading and Packaging 3.2.1 Grading Zhanhua winter dates should be graded immediately after harvest. They ar