What you are asking is the reason for the high temperature and poor quality of strawberry. The reason for this is the following：

1. Improper transportation leads to high temperature: strawberries are perishable fruits and are easily affected by temperature. Without proper cold chain guarantee during transportation, the temperature of strawberries will be too high, resulting in low quality.

2. Improper variety cultivation: Suizhu strawberry is an excellent strawberry variety, but improper cultivation will reduce the quality of strawberry.

3. Improper use of preservatives: In order to prolong the shelf life of strawberries, some strawberries will be added with preservatives, but improper use will also have a negative impact on the quality of strawberries.