Citric Acid (Anhydrous) USP/Kosher: The Multi-Use Food Ingredient Your Production Line Cannot Skip

Product Overview

Citric Acid is the world’s most widely used food acid, naturally occurring in citrus fruits and commercially produced through the fermentation of glucose or sucrose by Aspergillus niger mold. EZ Elements supplies Citric Acid in its anhydrous form — the water-free version of this organic acid — with USP (United States Pharmacopeia) and Kosher certifications confirming the highest available purity and religious dietary compliance. The chemical formula is C6H8O7, the INCI name is Citric Acid, the international food additive code is E330, and the CAS number is 77-92-9.

The anhydrous form is specifically preferred over citric acid monohydrate in moisture-sensitive applications — including dry beverage mixes, effervescent tablets, powder seasonings, dry baking mixes, and anhydrous cosmetic formulations — because it contains no bound water (less than 0.5% moisture), offers a higher concentration of active citric acid by weight, and has a significantly longer shelf life in dry environments. For food manufacturers running high-throughput production lines, the anhydrous grade provides processing consistency, reduced caking risk, and greater formulation precision than the monohydrate form.

Key Features & Benefits

• USP and Kosher certified — meets the highest purity standards for pharmaceutical, food-grade, and religious dietary compliance manufacturing requirements.
• Anhydrous form with less than 0.5% moisture content — preferred for dry mixes, effervescent tablets, powder formulations, and moisture-sensitive processing environments.
• The world’s most widely used food acid — GRAS classified, E330 approved internationally, and accepted across all major food regulatory frameworks globally.
• Functions simultaneously as an acidulant, flavor enhancer, preservative synergist, chelating agent, pH buffer, and antioxidant synergist across food applications.
• Biodegradable and derived from natural fermentation — an environmentally responsible acid choice with a strong safety profile across all application industries.
• Highly water-soluble (592 g/L at 20 degrees C), dissolving completely and rapidly in aqueous food and formulation systems.
• Synergistic preservative activity alongside Ascorbic Acid, Sodium Benzoate, and Potassium Sorbate — enhances the efficacy of antimicrobial preservatives by lowering pH.

Applications

Citric Acid Anhydrous USP/Kosher is used across six industry categories served by EZ Elements.

Food & Beverages

• Primary acidulant and flavor enhancer in carbonated soft drinks, energy drinks, sports drinks, fruit juices, and flavored water products — the most common global application
• pH adjustment and buffering in food manufacturing to achieve and maintain target acidity for flavor, preservation, and product stability across diverse food categories
• Preservative synergist enhancing the antimicrobial efficacy of Sodium Benzoate and Potassium Sorbate by lowering product pH to the optimal range for their activity
• Effervescent tablet and instant powder beverage formulations — Citric Acid reacts with Sodium Bicarbonate in dry blend systems to produce CO2 fizzing upon water addition
• Confectionery acidulant providing the characteristic tart and sour taste in hard candy, gummy products, sour coatings, and flavored candy manufacturing
• Anti-browning agent in fresh-cut fruit and vegetable processing, working synergistically with Ascorbic Acid for enhanced enzymatic browning inhibition
• Flavor enhancer and brightness agent in jams, jellies, marmalades, fruit preserves, and condiment manufacturing
• Emulsification support in processed cheese manufacturing — Citric Acid chelates calcium ions facilitating smooth protein dispersion and melt behavior
• Wine and cider acidification to achieve target titratable acidity and flavor balance in fermented beverage production
• Dry seasoning, spice blend, and flavoring powder formulations where anhydrous form prevents moisture-induced caking

Personal Care

• Primary pH adjuster across a wide range of personal care formulations including shampoos, conditioners, toners, serums, and body washes
• Alpha hydroxy acid (AHA) active in mild exfoliating and skin-renewal formulations at higher concentrations
• Chelating agent binding calcium and magnesium ions in hard water, improving surfactant performance and preventing soap scum formation in cleansing products
• Effervescent component in bath bombs, bath tablets, and fizzing personal care products when combined with Sodium Bicarbonate
• Antioxidant synergist in natural personal care formulations protecting oil phases and sensitive actives from oxidative degradation

Pharmaceutical

• Effervescent tablet excipient — the primary acidic component reacting with bicarbonate to produce the CO2 dissolution effect in effervescent Vitamin C, antacid, and supplement tablets
• pH adjuster and buffering agent in oral pharmaceutical liquid formulations including syrups, suspensions, and elixirs
• Chelating agent sequestering metal ions in injectable and topical pharmaceutical preparations to prevent oxidative degradation of active ingredients
• Flavor masking and palatability enhancer in oral pharmaceutical formulations improving patient compliance with bitter or unpleasant-tasting medications
• Anhydrous grade preferred for moisture-sensitive pharmaceutical powder and granule formulations requiring precise moisture control

Cleaning & Sanitation

• Descaling agent removing limescale, calcium carbonate, and mineral deposits from kettles, coffee machines, dishwashers, and food processing equipment — a highly effective and food-safe descaler
• Rust and iron stain remover from stainless steel, enamel, and ceramic surfaces in food manufacturing and household cleaning applications
• Water softener and chelating builder in liquid detergents and household cleaning products, improving cleaning performance in hard water conditions
• Environmentally safe and biodegradable alternative to phosphate-based detergent builders and synthetic chelating agents in green cleaning formulations
• Bathroom and tile cleaner formulations targeting soap scum, hard water stains, and mineral buildup on grout and tile surfaces

Industrial Supplies

• Metal passivation and surface treatment — Citric Acid meets ASTM A967 standards for passivation of stainless steel in pharmaceutical, food, and industrial equipment manufacturing
• Industrial water treatment scale and corrosion inhibitor in boiler systems, cooling towers, and heat exchanger maintenance
• Textile dyeing and fabric processing auxiliary — used as a pH modifier and chelating agent in dyebath formulations and fabric finishing processes
• Electronics manufacturing cleaning agent for printed circuit board flux residue removal and precision component cleaning
• Oil field and well treatment chemical applications where its chelating and acid properties support scale removal and pH adjustment

Pet Care

• pH adjuster and acidulant in moist pet food, pet beverage, and liquid pet supplement formulations
• Preservative synergist enhancing the efficacy of Potassium Sorbate and Sodium Benzoate in water-based pet care product preservation systems
• Chelating agent in pet grooming products removing mineral deposits and improving surfactant performance in hard water conditions
• Effervescent component in pet dental care tablets and fizzable pet supplement products

Technical Specifications

Why Choose EZ Elements as Your Supplier

EZ Elements supplies USP and Kosher certified Citric Acid Anhydrous with verified purity, consistent granule quality, and complete documentation to support food manufacturers, beverage producers, personal care brands, pharmaceutical formulators, and industrial users across Canada and North America.

We supply food manufacturers, bakeries, beverage companies, personal care formulators, pharmaceutical producers, and cleaning product developers, providing:

• Full documentation including Technical Data Sheet (TDS), Certificate of Analysis (COA), and Safety Data Sheet (SDS)
• USP and Kosher certification documentation for regulated and dietary-compliant manufacturing environments
• Bulk supply with competitive, transparent pricing per kilogram across all available pack sizes
• Technical support on use levels, pH targeting, formulation compatibility, and industry-specific application guidance

Safety & Storage Guidelines

• Store in a cool, dry, well-ventilated area away from direct sunlight, heat, and humidity — the anhydrous form is hygroscopic and will absorb moisture from the air if left unsealed.
• Keep containers tightly sealed immediately after use to prevent moisture absorption and caking of the crystalline powder.
• Anhydrous Citric Acid is a mild irritant to skin, eyes, and respiratory tract when handled as a fine powder in large quantities; wear appropriate protective equipment.
• Avoid combining with strong oxidizing agents, strong bases, or metal nitrates without appropriate ventilation and safety precautions.
• Shelf life is typically 2 to 3 years from manufacture date when stored correctly in sealed, cool, dry conditions away from moisture.

Complete handling, first aid, and disposal instructions are provided in the Safety Data Sheet (SDS) available from EZ Elements upon request.

Frequently Asked Questions

Q1: What is the difference between Citric Acid Anhydrous and Citric Acid Monohydrate?

Citric Acid Anhydrous and Citric Acid Monohydrate are the same organic acid in two different hydration states. Anhydrous citric acid contains less than 0.5% moisture and provides 100% citric acid by weight. Monohydrate contains approximately 8.5% bound water, meaning it provides approximately 91.5% active citric acid by weight. The anhydrous form is preferred for moisture-sensitive applications including dry beverage mixes, effervescent tablets, powder seasonings, and anhydrous cosmetic formulations where any added moisture would destabilize the product or cause caking. For water-based liquid applications, both forms perform equivalently once dissolved.

Q2: How does Citric Acid enhance the performance of food preservatives?

Citric Acid functions as a powerful preservative synergist by lowering the pH of food formulations, which increases the proportion of undissociated acid molecules in preservatives such as Sodium Benzoate and Potassium Sorbate — the active antimicrobial form of these ingredients. At lower pH (below 4.5 for Sodium Benzoate; below 6.5 for Potassium Sorbate), these preservatives become significantly more effective against bacteria, yeast, and mold. By combining Citric Acid with these preservatives, food manufacturers can achieve the same level of protection at lower preservative concentrations, or maintain effectiveness in formulations where pH adjustment is also needed for flavor or stability reasons.

Q3: Is Citric Acid Anhydrous USP/Kosher suitable for use in Kosher-certified food products?

Yes. EZ Elements supplies Citric Acid Anhydrous with Kosher certification, confirming that the ingredient has been produced and handled in compliance with Jewish dietary laws as verified by a recognized Kosher certifying authority. This certification is required by many food manufacturers supplying to markets where Kosher-certified ingredients are mandated or preferred by consumers. The USP certification additionally confirms that the material meets pharmaceutical-grade purity standards, making it acceptable for use in food, pharmaceutical, and supplement manufacturing requiring the highest quality documentation.

Q4: Can Citric Acid Anhydrous be used as a descaling agent for food production equipment?

Yes. Citric Acid is one of the most effective and food-safe descaling agents available for commercial food production equipment including kettles, boilers, coffee brewers, pasteurizers, and heat exchangers. It dissolves calcium carbonate, magnesium carbonate, and other mineral scale deposits through acid dissolution and chelation of the divalent metal ions. Because it is food-grade, GRAS classified, and biodegradable, it is particularly well-suited for cleaning food contact surfaces where chemical residue safety and environmental impact are important considerations.

Q5: What concentration of Citric Acid is typically used in carbonated beverages?

In carbonated soft drinks and beverage formulations, Citric Acid is typically used at concentrations of 0.1% to 0.5% of the total beverage weight, depending on the desired level of tartness, the type of beverage, and the other flavor components in the formula. Cola-type beverages tend to use phosphoric acid as the primary acidulant, while fruit-flavored beverages, sports drinks, and sparkling waters predominantly use Citric Acid for its clean citrus flavor profile. In combination with Ascorbic Acid and Potassium Sorbate, it also contributes to the preservation and antioxidant stability of the finished beverage.

Q6: Where can I buy Citric Acid Anhydrous USP/Kosher in bulk in Canada?

Citric Acid Anhydrous USP/Kosher is available for bulk purchase directly from EZ Elements, with supply options for food manufacturers, beverage producers, personal care formulators, pharmaceutical companies, cleaning product developers, and industrial users across Canada and North America. Contact our team for current pricing, documentation, and product samples.

Related Ingredients

The following EZ Elements ingredients are commonly used alongside Citric Acid in food, personal care, and preservation formulations:

• Ascorbic Acid (Vitamin C) Food Grade — Works synergistically with Citric Acid as an antioxidant and anti-browning agent in food and beverage formulations; the two are frequently combined in juice, fresh produce, and preservation applications.
• Sodium Bicarbonate (Baking Soda)  — Reacts with Citric Acid in effervescent tablet and bath bomb formulations to produce CO2 fizzing; the two ingredients form the classic effervescent acid-base pair across food, pharmaceutical, and personal care applications.
• Potassium Sorbate — Antimicrobial preservative whose efficacy is significantly enhanced by Citric Acid lowering the formulation pH to the optimal range for sorbate activity in food and beverage preservation systems.

Order or Enquire

Looking to buy Citric Acid Anhydrous USP/Kosher in bulk? Contact EZ Elements for current pricing, full product documentation, and supply options across food and beverage, personal care, pharmaceutical, cleaning, and industrial applications. We supply brands, manufacturers, and formulators across Canada and North America. Reach out today to request a sample, Technical Data Sheet, or a bulk pricing quote for your next project.