Freshly picked blueberries are often contaminated with mud, debris, leaves, and even insects. Furthermore, due to inconsistent harvesting, blueberries vary in ripeness and size. Washing and sorting effectively achieve the following goals:
- Removing surface impurities improves product appearance.
- Reducing microbial load extends shelf life.
- Sorting by diameter facilitates pricing and marketing.
- Improving processing automation efficiency reduces manual sorting costs.
When washing blueberries, a bubble blueberry washing machine is commonly used. Compared to spraying or brushing, bubble washing is gentler and less likely to damage the peel. Blueberries have thin peels and soft flesh, making them susceptible to breakage and oxidation. Damage to the peel not only affects the product’s appearance but also significantly shortens its shelf life, which is why this cleaning method is often used.
Blueberry Washing Machine Features:
- Uniform and thorough cleaning: Circulating water and agitating air bubbles clean every inch of the blueberries.
- Gentle cleaning, protecting the peel: No harsh brushing or strong impacts are used to prevent damage.
- Automatic lifting device: Cleaned blueberries are automatically transported to the next process, saving labor.
After cleaning, the blueberries enter the sorting stage. A size blueberry sorting machine is typically used, sorting the blueberries into four to seven grades based on their diameter. This equipment is particularly suitable for fruits and vegetables like blueberries, where subtle differences in diameter are particularly sensitive.
Advantages of Blueberry Sorting Machine:
- Precise screening and clear grades: High sorting accuracy allows for more detailed differentiation of fruits of different diameters.
- No damage to the fruit: The flexible design of the blueberry sorting machine ensures a smooth grading process, eliminating vibrations and impacts that could cause peel breakage.
- High efficiency and labor savings: Fully automated operation replaces traditional manual grading, improving sorting efficiency.
The blueberry washing and sorting line is not only suitable for large-scale blueberry plantations and fruit and vegetable processing companies, but is also widely used by export traders and fruit packaging factories. Combined with subsequent air-drying, weighing, and packaging equipment, it can form a complete blueberry sorting and packaging line, helping customers achieve efficient and standardized product output.
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