Why do blueberries become soft after harvest

Softening of blueberries after harvest is a natural process that cannot be completely stopped, but it can be significantly slowed down.

Main causes of blueberry softening

1. Water loss

After harvest, the fruit loses water through the skin, which leads to a decrease in firmness.

2. Breakdown of cellular structure

Over time, the cell walls of the fruit degrade and the fruit becomes soft.

3. Temperature

The higher the temperature, the faster blueberries soften.

4. Mechanical damage

Even a small impact can cause internal damage, which accelerates the softening process.

How to slow down blueberry softening

• rapid cooling after harvest,
• gentle transport,
• reducing drop heights,
• sorting and removing soft fruit,
• maintaining the cold chain.

In practice, it is very important to remove soft fruit before packing, because one soft blueberry can accelerate the spoilage of the entire package. That is why quality sorting is increasingly used:
https://greensort.com/en/products/blueberry-sorter/

Summary

Blueberry softening is a natural process, but its rate depends on:

• temperature,
• time,
• damage,
• sorting quality.

The better the sorting and storage process is controlled, the longer blueberries maintain their commercial quality.