Buffered vinegar
Buffered vinegar is vinegar that has been partly neutralized with an alkali such as sodium or potassium carbonate, bicarbonate or hydroxide, so it contains acetic acid together with acetate and diacetate salts. It is sold as a liquid or spray-dried onto a carrier as a powder. Meat, poultry and deli processors use it to control spoilage and pathogens in place of synthetic acetates or lactates, and bakeries use it against mold.
Suppliers sell different products under the same name. Specify the one you need.
Buffered vinegar solution, often dosed into brines and marinades.
Powder made by drying buffered vinegar, sometimes on a carrier such as maltodextrin, for dry blends and seasonings.
Grades neutralized with sodium or potassium alkali; the potassium versions are chosen to cut sodium.
Combinations sold as clean-label preservative systems for meat and bakery.
Grades made from organic vinegar, where the alkali used is permitted for organic products.
Compare each result with your own specification when the lot arrives.
Store liquid buffered vinegar closed at moderate temperature in food-grade plastic or stainless containers. Keep powders sealed in a cool, dry place, since they absorb moisture and cake. Shelf life is set by the supplier's specification, with retest of acetate content and micro for older stock.
Record the acetate content, pH and sodium or potassium level for each lot, because dose and nutrition labeling depend on them. Note the vinegar source and carrier if you make organic or allergen statements.
Facts from regulators and standards bodies, each linked to its source.
Health Canada's List of Permitted Preservatives includes modified vinegar, defined as a liquid or spray-dried mixture of acetic acid with one or more of potassium acetate, potassium diacetate, sodium acetate or sodium diacetate made by adding an alkali to vinegar.
Source: canada.ca (opens in a new tab)The same list permits modified vinegar as a preservative in meat products such as brawn, headcheese and meat loaf.
Source: canada.ca (opens in a new tab)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.
Manufacturers and distributors whose own websites say they sell it.
Manufacturer · Amsterdam, Netherlands
Sells it as Verdad
Dutch maker of lactic acid made by fermenting sugar, plus lactate salts, buffered vinegar preservatives and rosemary-based shelf-life blends for food and beverage manufacturers.
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.
Common forms include liquid, dry (spray-dried), sodium or potassium buffered, blends with cultured sugars or lemon juice and organic. Ask each supplier for the specification sheet of the exact grade they quote.
Expect acetate and acetic acid, pH, sodium or potassium content, moisture, microbiology and heavy metals, each with its method, specification and result for that lot.
Store liquid buffered vinegar closed at moderate temperature in food-grade plastic or stainless containers. Keep powders sealed in a cool, dry place, since they absorb moisture and cake. Shelf life is set by the supplier's specification, with retest of acetate content and micro for older stock.
Health Canada's List of Permitted Preservatives includes modified vinegar, defined as a liquid or spray-dried mixture of acetic acid with one or more of potassium acetate, potassium diacetate, sodium acetate or sodium diacetate made by adding an alkali to vinegar. The same list permits modified vinegar as a preservative in meat products such as brawn, headcheese and meat loaf.
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