1, production time. The orange juice of the same brand will be produced at different times, and there are slight formula changes or adjustment of manufacturing process, resulting in different batches, which makes the sodium content of the orange juice of the same brand different.

2. suppliers. There are many suppliers for the products of the same brand, and factors such as production technology and raw material selection of different suppliers will lead to differences in sodium content, thus making the sodium content of Chu orange juice different from that of the same brand.