Fungal infection does not occur in jams and pickles. Why?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Composition of Jams and Pickles:**
- Jams and pickles are preserved foods that contain high concentrations of sugar and salt. These ingredients are added specifically to prevent spoilage and extend shelf life.

2. **Role of Sugar and Salt:**
- Sugar and salt act as preservatives by creating an environment that is unfavorable for the growth of microorganisms, including fungi. The high concentration of these substances reduces the availability of water, which is essential for microbial growth.

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