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Fruit Squash Processing – A Summer Favorite

By PMG Engineering ·

Introduction: Why Fruit Squash Matters

In the world of fruit and vegetable processing, squash stands out as a summer-exclusive beverage that blends health, flavor, and convenience. With increasing demand for nutritious yet shelf-stable drinks, fruit squashes have become a vital product line for food and beverage manufacturing consultants and food industry consultants.

What is Fruit Squash?

Fruit squash is a non-alcoholic, fruit-flavored concentrated syrup made from fruit juice, water, and sugar or sugar substitutes. It’s typically diluted with water before consumption and often includes citrus bases like orange, lime, or lemon, or blends of berries and herbs such as elderflower and ginger.

As per FSSAI regulations, squash must:

  • Contain minimum 25% fruit content
  • Have minimum 40° Brix total soluble solids
  • Not exceed 3.5% acidity (as anhydrous citric acid)
  • Use permitted preservatives: 350 ppm sulphur dioxide or 600 ppm benzoic acid

Processing of Fruit Squash: Step-by-Step

1. Fruit Selection

Ripe, fresh fruits are chosen. Avoid overripe or unripe fruits to maintain juice quality.

2. Washing

Fruits are cleaned with water and optionally treated with 0.5% HCl solution to remove dirt and residues like arsenic or lead.

3. Sorting and Grading

Manual or automated systems ensure uniform ripeness and quality.

4. Peeling, Deseeding, Destoning

Fruits are prepared based on type—seeds and stones removed before processing.

 

5. Cutting, Slicing & Crushing

  • Fruits are sliced and crushed.
  • Juicy fruits (e.g., citrus) are processed with mechanical pressers.
  • Pulpier fruits (e.g., mango, guava) require pulp extraction using perforated metal plates.

 

6. Pasteurization

Juice is pasteurized at 80–95°C for 10–12 minutes using:

  • Plate pasteurizer (most common)
  • Tubular pasteurizer
  • Steam pasteurizer

 

7. Clarification

Centrifugation (6000–6500 RPM) or ultraclarifiers ensure juice clarity.

8. Syrup Preparation

Sugar, acid, and water are combined and heated to form syrup.

9. Mixing

Syrup and clarified juice are mixed thoroughly in stainless-steel tanks.

10. Addition of Preservatives

Preservatives like sodium benzoate (1.0 g/L) or KMS are added.

11. Cooling

Product is cooled to room temperature.

12. Deaeration

Oxygen is removed to enhance shelf life and product quality.

13. Aseptic Bottling and Capping

Sterile containers are filled and sealed under aseptic conditions.

 

Squash Manufacturing Process Flow Chart

Conclusion: Squash Processing in the Food Industry

Fruit squash remains a staple product in food manufacturing. It combines:

  • Moderate fruit pulp
  • Added sugar and acid for flavor and preservation
  • Use of SO₂ to reduce browning and spoilage

For food consultants, food processing consultants, and food technology consulting firms, squash production represents a valuable case study in efficient beverage processing, preservation techniques, and regulatory compliance in the food and beverage sector.

Frequently asked
What does FSSAI require for a product to be sold as fruit squash?
Under FSSAI regulations, fruit squash must contain a minimum of 25% fruit content and a minimum of 40° Brix total soluble solids, with acidity not exceeding 3.5% (as anhydrous citric acid). Permitted preservatives are limited to 350 ppm sulphur dioxide or 600 ppm benzoic acid. These limits govern recipe formulation, dosing controls and quality checks in any squash processing line.
What pasteurization parameters and equipment are used for squash juice?
In fruit squash processing, juice is pasteurized at 80–95°C for 10–12 minutes. Three equipment options are used: a plate pasteurizer, which is the most common choice, a tubular pasteurizer, or steam pasteurization. The selected pasteurizer must hold the time–temperature combination reliably, since this step underpins microbial safety and shelf stability of the finished squash.
How do juicy fruits and pulpy fruits differ in the extraction equipment we need?
For fruit squash, juicy fruits such as citrus are processed using mechanical pressers, while pulpier fruits such as mango and guava require pulp extraction through perforated metal plates. This distinction drives equipment selection at the crushing stage, so the fruit basket planned for the plant should be fixed early to size pressers or pulpers correctly.
What is the full processing sequence for fruit squash from raw fruit to bottle?
Fruit squash processing follows: fruit selection; washing; sorting and grading; peeling, deseeding and destoning; cutting, slicing and crushing; pasteurization; clarification; syrup preparation; mixing of syrup with clarified juice; addition of preservatives; cooling; deaeration; and aseptic bottling and capping. Each step must be laid out to preserve juice quality and meet regulatory limits for the finished product.
How is juice clarity achieved in a squash line?
Clarification in fruit squash processing is done by centrifugation at 6000–6500 RPM or by using ultraclarifiers. This step follows pasteurization and precedes mixing of the clarified juice with the prepared syrup, and it determines the visual clarity of the final diluted drink, which is an important consumer quality attribute for citrus-based squashes.
Why are deaeration and preservative dosing included before bottling?
In fruit squash manufacture, preservatives such as sodium benzoate at 1.0 g/L or KMS are added after mixing, and the product is then cooled to room temperature and deaerated to remove oxygen, which enhances shelf life and product quality. Sulphur dioxide is also used to reduce browning and spoilage. Filling then takes place into sterile containers under aseptic conditions.
CITE THIS

PMG Engineering. (2021). Fruit Squash Processing – A Summer Favorite. PMG Engineering. https://pmg.engineering/Article/101/fruit-squash-processing-a-summer-favorite/

https://pmg.engineering/Article/101/fruit-squash-processing-a-summer-favorite/