# 21 CFR § 173.55: Polyvinylpyrrolidone

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-21-173.55

## Section

- **Citation:** 21 CFR § 173.55
- **Heading:** Polyvinylpyrrolidone
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 21—Food and Drugs > CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES > SUBCHAPTER B—FOOD FOR HUMAN CONSUMPTION > PART 173—SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION > Subpart A—Polymer Substances and Polymer Adjuvants for Food Treatment

## Text

The food additive polyvinylpyrroli-done may be safely used in accordance with the following prescribed conditions:
(a) The additive is a polymer of purified vinylpyrrolidone catalytically produced, having an average molecular weight of 40,000 and a maximum unsaturation of 1 percent, calculated as the monomer, except that the polyvinylpyrrolidone used in beer is that having an average molecular weight of 360,000 and a maximum unsaturation of 1 percent, calculated as the monomer.
(b) The additive is used or intended for use in foods as follows:
Food
Limitations
Beer
As a clarifying agent, at a residual level not to exceed 10 parts per million.
Flavor concentrates in tablet form
As a tableting adjuvent in an amount not to exceed good manufacturing practice.
Nonnutritive sweeteners in concentrated liquid form
As a stabilizer, bodying agent, and dispersant, in an amount not to exceed good manufacturing practice.
Nonnutritive sweeteners in tablet form
As a tableting adjuvant in an amount not to exceed good manufacturing practice.
Vitamin and mineral concentrates in liquid form
As a stabilizer, bodying agent, and dispersant, in an amount not to exceed good manufacturing practice.
Vitamin and mineral concentrates in tablet form
As a tableting adjuvant in an amount not to exceed good manufacturing practice.
Vinegar
As a clarifying agent, at a residual level not to exceed 40 parts per million.
Wine
As a clarifying agent, at a residual level not to exceed 60 parts per million.

## Nearby sections

- [21 CFR § 173.5 § 173.5 Acrylate-acrylamide resins.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.5.md)
- [21 CFR § 173.10 § 173.10 Modified polyacrylamide resin.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.10.md)
- [21 CFR § 173.20 § 173.20 Ion-exchange membranes.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.20.md)
- [21 CFR § 173.21 § 173.21 Perfluorinated ion exchange membranes.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.21.md)
- [21 CFR § 173.25 § 173.25 Ion-exchange resins.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.25.md)
- [21 CFR § 173.40 § 173.40 Molecular sieve resins.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.40.md)
- [21 CFR § 173.45 § 173.45 Polymaleic acid and its sodium salt.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.45.md)
- [21 CFR § 173.50 § 173.50 Polyvinylpolypyrrolidone.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.50.md)
- [21 CFR § 173.55 § 173.55 Polyvinylpyrrolidone.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.55.md)
- [21 CFR § 173.60 § 173.60 Dimethylamine-epichlorohydrin copolymer.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.60.md)
- [21 CFR § 173.65 § 173.65 Divinylbenzene copolymer.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.65.md)
- [21 CFR § 173.70 § 173.70 Chloromethylated aminated styrene-divinylbenzene resin.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.70.md)
- [21 CFR § 173.73 § 173.73 Sodium polyacrylate.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.73.md)
- [21 CFR § 173.75 § 173.75 Sorbitan monooleate.](https://www.frixlaw.com/law-library/statutes/ecfr-21-173.75.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-21-173.55. Check the current official text before relying on it. Not legal advice.