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Malic acid

Malic acid suppliers and sourcing guide

Malic acid is a dicarboxylic acid that gives apples and many other fruits much of their sour taste. Most food-grade malic acid is racemic DL-malic acid, made by hydrating maleic or fumaric acid; L-malic acid, the form found in fruit, is made by enzymatic conversion of fumaric acid and costs more. It is sold as a white crystalline powder or granules and is often blended with citric acid for sour candy, drinks and powdered mixes.

Also known as
DL-malic acid · L-malic acid · hydroxysuccinic acid · E296
Facts checked
November 2026

Forms and grades of malic acid

Suppliers sell different products under the same name. Specify the one you need.

  • DL-malic acid

    The standard synthetic racemic form, sold as granular and fine powder grades for drinks, candy and dry mixes.

  • L-malic acid

    The single isomer found in fruit, made enzymatically; specified where a fruit-identical acid or organic compliance is required.

  • Buffered malic acid

    Malic acid partly neutralized with sodium malate, used for sour sanding on gummies because it draws less moisture.

  • Solution

    Liquid malic acid, often around 50 percent, for beverage plants that meter acid as a liquid.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Assay (titration)
Malic acid content by titration with sodium hydroxide, reported against the FCC range.
Fumaric and maleic acid
Residual fumaric and maleic acid by HPLC, carried over from synthesis of the DL form.
Optical rotation
Specific rotation, which separates L-malic acid from the racemic DL form when the spec calls for L-malic.
Water-insoluble matter and residue on ignition
Simple purity checks on insoluble particles and inorganic residue.
Lead
Lead by ICP-MS or graphite furnace AA against the FCC or supplier limit.

Storage, lots and expiry

Storage and shelf life

Malic acid is hygroscopic and will cake in humid conditions, so it is kept sealed in lined bags in a cool, dry store. Buffered and fine-powder grades are more prone to clumping once a bag is opened. Shelf life is set by the supplier's specification, with retest of assay and appearance for aged stock.

Lots and expiry dates

Record whether each lot is DL- or L-malic acid and its particle size, because sour-sanding results and organic eligibility depend on both. Check fumaric acid on the COA when changing suppliers of DL-malic acid.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Malic acid suppliers

Manufacturers and distributors whose own websites say they sell it.

  • Bartek Ingredients

    Manufacturer · Stoney Creek, Canada

    Sells it as EasyAcid

    Canadian producer focused on malic acid and food-grade fumaric acid, sold in several grades to food, beverage, confectionery, supplement, animal feed and industrial customers.

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of malic acid can brands buy?

Common forms include dL-malic acid, l-malic acid, buffered malic acid and solution. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for malic acid include?

Expect assay (titration), fumaric and maleic acid, optical rotation, water-insoluble matter and residue on ignition and lead, each with its method, specification and result for that lot.

How should malic acid be stored?

Malic acid is hygroscopic and will cake in humid conditions, so it is kept sealed in lined bags in a cool, dry store. Buffered and fine-powder grades are more prone to clumping once a bag is opened. Shelf life is set by the supplier's specification, with retest of assay and appearance for aged stock.

What is the regulatory status of malic acid?

21 CFR 184.1069 affirms malic acid as GRAS for use as a flavor enhancer, flavoring agent and adjuvant, and pH control agent in food, except baby food, with maximum levels set by food category. 7 CFR 205.605(a) lists L-malic acid as a nonsynthetic substance allowed in products labeled organic. Health Canada's List of Permitted Acidity Regulators and Acid-Reacting Materials includes malic acid.

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