Understanding Quality Standards for Processed Foods

Every time you pick up a jar of pickle, a bottle of ketchup, or a packet of chutney from a store shelf, there’s an entire system of quality standards working behind the scenes. These standards decide everything – from how much fruit pulp your sauce must contain to which preservatives are allowed and in what quantity. For processed foods like pickles, chutneys, sauces, and tomato products, quality standards are not optional niceties. They are legally enforced benchmarks that protect consumer health, ensure fair trade, and maintain product consistency across brands and batches.

Why quality standards matter for processed foods 🔗

Processed foods undergo several stages – washing, cutting, cooking, mixing, preservation, and packaging. At each stage, there is a risk of contamination, nutrient loss, or quality degradation. Quality standards set measurable benchmarks so that every product reaching the consumer meets a minimum acceptable level of safety and quality. Without these standards, manufacturers could use substandard ingredients, excessive preservatives, or misleading labels without any accountability.

In India, the Food Safety and Standards Authority of India (FSSAI) is the central regulatory body governing food product standards. It operates under the Food Safety and Standards Act, 2006, which replaced older regulations like the Fruit Products Order (FPO) of 1955. At the international level, the Codex Alimentarius, developed jointly by the FAO and WHO, provides globally recognised reference standards for food safety, composition, and labelling. Many of India’s FSSAI regulations align with or draw from Codex standards to facilitate international trade and ensure consumer protection.

Key quality parameters for processed foods 🔗

Quality standards for products like pickles, chutneys, sauces, and tomato products revolve around a few critical parameters. These include total soluble solids (TSS), acidity, preservative limits, and general composition requirements. Let’s look at each one.

Total soluble solids (TSS) 🔗

Total soluble solids refer to the dissolved content in a food product – mainly sugars, salts, acids, and other soluble compounds. TSS is measured using a refractometer and expressed as a percentage (often as °Brix). It serves as a reliable indicator of product concentration, flavour consistency, and shelf stability. A higher TSS typically means a thicker, more concentrated product.

Different processed foods have different minimum TSS requirements under FSSAI specifications. For example, tomato sauce or ketchup must have a minimum TSS of 25% on a salt-free basis. Chutneys require a minimum TSS of 50%. These thresholds ensure that the product has enough fruit or vegetable content and hasn’t been excessively diluted with water.

For tomato concentrates at the international level, the Codex standard (CXS 57-1981) specifies that tomato puree must contain not less than 7% but less than 24% natural total soluble solids, while tomato paste must contain at least 24% natural total soluble solids. These concentrations are measured on the product without added salt.

Acidity levels 🔗

Acidity is another critical quality parameter. It indicates the concentration of organic acids present in the product and plays a direct role in preservation, taste, and microbial safety. A sufficiently acidic environment (generally pH below 4.6) inhibits the growth of dangerous bacteria such as Clostridium botulinum.

For tomato ketchup and tomato sauce, FSSAI mandates a minimum acidity of 1.0% expressed as acetic acid. For pickles packed in citrus juice, the minimum acidity as citric acid should be not less than 1.2%. Vinegar-based pickles must have an acidity of at least 2.0% as acetic acid. These thresholds ensure that the product’s acid level is high enough to be both safe and characteristic of its type.

Drained weight 🔗

Drained weight is particularly important for pickles. It refers to the weight of the solid food pieces after the liquid medium (oil, brine, or vinegar) has been drained off. FSSAI standards require pickles to have a drained weight of not less than 60% of the total product weight. This prevents manufacturers from filling jars mostly with liquid while skimping on actual fruit or vegetable pieces.

Salt content 🔗

Salt (sodium chloride) is both a flavouring agent and a preservative in products like pickles. For pickles packed in brine, the FSSAI standard requires a minimum sodium chloride content of 12%. This level is necessary to create an environment that suppresses microbial growth and supports proper preservation during storage.

Permissible limits of preservatives 🔗

Preservatives extend shelf life by preventing microbial spoilage, but their use must be carefully controlled. Excessive use of chemical preservatives can pose health risks, including allergic reactions and long-term toxicity. FSSAI regulations specify exactly which preservatives can be used in each product category and the maximum concentration allowed.

Common preservatives and their limits 🔗

The two most commonly used preservatives in Indian processed fruit and vegetable products are sodium benzoate (INS 211) and sodium metabisulphite (INS 223). Sodium benzoate works by inhibiting yeast and mould growth in acidic conditions, while sodium metabisulphite releases sulphur dioxide (SO₂), which acts as both an antimicrobial agent and an antioxidant.

According to FSSAI specifications, the permitted preservative limits for key products are as follows. For tomato sauce and ketchup, the limit is 70 ppm of SO₂. For pickles, the permitted level is 100 ppm of SO₂. Chutneys can contain either 100 ppm of SO₂ or 250 ppm of benzoic acid (as sodium benzoate). Squashes, which are more dilute beverages, are allowed up to 350 ppm of SO₂ or 600 ppm of benzoic acid.

It is important to note that salicylic acid is classified as an unpermitted preservative under FSSAI regulations. Any food product found to contain salicylic acid is considered adulterated.

Why preservative limits matter 🔗

Setting preservative limits is a balancing act. Too little preservative and the product spoils quickly, posing a food safety risk. Too much, and consumers are exposed to potentially harmful chemical levels over time. Sulphites, for example, can trigger allergic reactions in sensitive individuals, particularly those with asthma. This is why FSSAI not only caps preservative quantities but also requires them to be declared on the product label.

Labelling requirements 🔗

Labelling is where quality standards become visible to the consumer. A well-labelled product communicates exactly what it contains, how it was made, and how long it will remain safe to consume. In India, the Food Safety and Standards (Labelling and Display) Regulations lay down comprehensive rules for all pre-packaged foods, including processed fruit and vegetable products.

Mandatory label information 🔗

Every packaged food product sold in India must display the following on its label: the name of the food, a complete list of ingredients in descending order of their composition, nutritional information per 100 g or per serving, the net quantity, the name and address of the manufacturer or packer, the FSSAI logo and licence number, the batch or lot number, and clear date markings – including the date of manufacture or packaging and the expiry or “use by” date.

For products with a shelf life of up to three months, the date must be declared in DD/MM/YY format. For those with a longer shelf life, the month and year are sufficient. Additionally, the vegetarian or non-vegetarian symbol (green dot for vegetarian, brown dot for non-vegetarian) must be prominently displayed on the principal display panel.

Declaration of additives and allergens 🔗

If any colour, flavour, or preservative has been added to the product, this must be declared on the label. FSSAI requires specific statements in capital letters – for instance, products with added colour must state “CONTAINS PERMITTED NATURAL COLOUR” or “CONTAINS PERMITTED SYNTHETIC FOOD COLOUR.” Similarly, the presence of common allergens such as gluten, peanuts, milk, eggs, or fish must be clearly highlighted.

For products like pickles that use mustard oil, this is especially relevant because mustard is a known allergen. Transparent labelling helps consumers with allergies or dietary restrictions make informed choices.

Language and legibility 🔗

Labels must be in English or Hindi. Other regional languages may be added, but the primary text must be in one of these two languages. All text must be legible, indelible, and easily readable under normal display and purchasing conditions. The font size for key information – particularly nutritional details on the front of the pack – has come under increased scrutiny, with FSSAI pushing for bolder, larger fonts for sugar, salt, and saturated fat declarations.

Standards for specific product categories 🔗

Pickles 🔗

Under FSSAI regulations, pickles are defined as preparations made from fruits, vegetables, or other edible plant material – free from insect damage or fungal infection – preserved in salt, acid, sugar, or a combination of these. Indian pickles can be broadly categorised into oil-based, vinegar-based, brine-based, and dry pickles. Each type has specific composition requirements. For oil pickles, the fruit and vegetable pieces must remain practically submerged in oil. For vinegar pickles, the acidity of vinegar must be at least 2.0% as acetic acid.

One major concern with pickles, particularly those from the unorganised sector, is adulteration of ingredients. Spices may carry aflatoxins or carcinogenic dyes, and oils like mustard oil can be adulterated with harmful argemone oil. All raw materials must conform to BIS or FSSAI standards to ensure product safety.

Chutneys 🔗

Fruit and vegetable chutneys must meet a minimum TSS of 50% and are allowed preservatives up to 100 ppm SO₂ or 250 ppm of benzoic acid. The high sugar content in chutneys acts as both a flavouring and preservation agent, while the acidity from vinegar or citrus juice adds an additional layer of microbial safety. Chutneys like mango chutney also fall under the Codex Alimentarius food categorisation system for condiment-type fruit products.

Tomato ketchup and sauce 🔗

Tomato ketchup and sauce are prepared by blending tomato juice, puree, or paste with sweeteners, salt, vinegar, and spices. The FSSAI standard requires a minimum of 25% TSS on a salt-free basis and a minimum acidity of 1.0% as acetic acid. The product must also meet microbiological safety requirements. In the United States, the USDA grades tomato sauce based on factors like colour, consistency, defects, and flavour, with a refractive index not less than 1.3455 at 20°C.

Tomato concentrates (puree and paste) 🔗

Processed tomato concentrates are covered under Codex Standard CXS 57-1981. Tomato puree contains between 7% and 24% natural total soluble solids, while tomato paste contains at least 24%. Quality criteria include freedom from extraneous plant material, mineral impurity content not exceeding 0.1% of natural TSS, lactic acid not exceeding 1% of natural TSS, and a pH below 4.6. These products must also comply with the Codex General Standard for Contaminants and Toxins in food.

Role of HACCP and quality management systems 🔗

Beyond product-specific standards, food manufacturers are strongly encouraged to adopt systematic quality management approaches. HACCP (Hazard Analysis and Critical Control Points) is a preventive system that identifies potential biological, chemical, and physical hazards at every stage of production and establishes critical control points to manage them. For processed foods like pickles and sauces, HACCP helps ensure that raw materials are sourced safely, processing temperatures are maintained, preservative dosages are accurate, and packaging integrity is preserved.

Many manufacturers also pursue ISO 22000 certification, which integrates HACCP principles with a broader food safety management system. Adopting these systems not only ensures compliance with FSSAI standards but also builds consumer confidence and facilitates export to markets where international quality certifications are mandatory.

Contaminant limits 🔗

Quality standards also address contaminants – substances that are not intentionally added but may end up in food through environmental exposure, processing, or packaging. The FSSAI’s Contaminants, Toxins and Residues Regulations specify maximum permissible levels for heavy metals like lead, cadmium, arsenic, and tin in various food products. For instance, the lead limit for mango chutney, pickled cucumber, and processed tomato concentrates is 250 ppb (parts per billion). These limits protect consumers from long-term toxic exposure that can result from contaminated soil, water, or packaging materials.

International standards and trade 🔗

For Indian manufacturers looking to export processed foods, compliance with international standards is essential. The Codex Alimentarius serves as the primary global reference point for food safety and trade. WTO member countries that follow Codex standards fulfil their obligations under the Sanitary and Phytosanitary (SPS) Agreement. This means an Indian pickle or tomato paste that meets Codex requirements is more likely to clear import regulations in other countries without additional scrutiny.

Countries like the United States, EU member states, and Japan have their own food safety authorities and standards, but these often align closely with Codex benchmarks. For example, the USDA’s grading system for tomato sauce evaluates colour, consistency, defects, and flavour on a 100-point scale – a structured approach to quality that parallels the compositional standards set by FSSAI and Codex.

Consequences of non-compliance 🔗

Failing to meet quality standards carries serious consequences. Under the FSS Act, 2006, violations can result in penalties ranging from fines to imprisonment, depending on the severity. Selling misbranded or adulterated food can lead to product recalls, licence cancellations, and reputational damage. For export-oriented businesses, non-compliance can mean rejection of entire consignments at the destination port, leading to financial losses and trade disputes.

Regular inspection, batch-wise testing, and proper documentation are essential for any food business operator to maintain continuous compliance. FSSAI conducts surveillance and random sampling to verify that products on the market meet the prescribed standards.

What do you think? How often do you check the labels on processed foods like pickles and sauces before buying them? Given the growing concern around food adulteration, do you think India needs stricter enforcement of its existing quality standards, or are the current regulations sufficient?

References

1. https://fssai.gov.in/
2. https://www.fao.org/fao-who-codexalimentarius/en/
3. http://www.agritech.tnau.ac.in/postharvest/fpo_spec.html
4. https://pfionline.com/quality-and-food-safety-standards-for-indian-pickles-achaar/
5. https://www.fssai.gov.in/upload/uploadfiles/files/FOOD_ADDITVES.pdf
6. https://fssai.gov.in/upload/uploadfiles/files/Comp_Labelling.pdf
7. https://www.ams.usda.gov/grades-standards/tomato-sauce-grades-and-standards
8. https://www.fao.org/fao-who-codexalimentarius/sh-proxy/en/?lnk=1&url=https://workspace.fao.org/sites/codex/Standards/CXS+57-1981/CXS_057e.pdf
9. https://www.fssai.gov.in/upload/uploadfiles/files/Compendium_Contaminants_Regulations_20_08_2020.pdf