Application of food machinery and equipment in sweet and sour juice

Sweet and sour sauce is a versatile condiment made primarily from tomatoes, combined with various seasonings. It is commonly used for cooking fish and vegetables or as a dip for spring rolls, skewers, and other dishes, offering a unique and flavorful addition to meals.

**Main Equipment:**

- Double-layer pot

- Mortar grinder

- Filling equipment

**Technical Process:**

1. **Boiling:**

- Mash onion, ginger, and garlic, then boil them with water for about 30 minutes before turning off the heat.

2. **Filtering:**

- Strain the mixture through gauze or a bag to remove residue, retaining the filtrate for further processing.

3. **Mixing:**

- Combine the filtrate with tomato sauce, sugar, and salt. Heat on low until boiling, stirring continuously. After turning off the heat, add a thickener and stir until well mixed.

4. **Grinding:**

- Pass the mixture through a grinder to ensure it is thoroughly dissolved and evenly blended.

5. **Acidification:**

- Add vinegar to the sauce until the pH reaches 3, stirring well. Bottle the finished product.

**Quality Standards:**

- The sauce should be rosy red, translucent, with no precipitation or stratification. It should have a balanced sweet and sour taste, a rich aroma, and a distinctive flavor.

**Precautions:**

1. Stir continuously during heating to prevent the sauce from sticking to the pan.

2. Adjust the acidity based on local taste preferences.

3. If the acidity is low, a small amount of preservative can be added; if the acidity is high, preservatives are generally unnecessary.