Modified hop extract
Modified hop extractModified hop extracts give beer bitterness that survives light. Ordinary hop compounds break down in a clear bottle to a substance identical to skunk spray; the reduced forms cannot, which is why some beers in clear glass do not go skunky.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| United States | Permitted, with conditions | 21 CFR 172.560retrieved 2026-09-07 | |
| Codex Alimentarius | Not listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited. |
What it is made from
Made by extracting hops with carbon dioxide, then chemically reducing the bitter acids to forms that light cannot break apart in the same way.
- Vegan
- Vegetarian
Every name it appears under
1 recorded name. A label may use any of them.
As it appears in regulation
- Modified hop extract
Hazard reference values
No reference value for this substance in the sources we hold.
Evidence and how bodies read it
Studies, and the differing conclusions regulators drew from them, are curated by hand rather than machine-read, and none has been written for this substance yet.
Sources for this page
- ecfr retrieved 2026-09-07
Full licence terms and publisher details on Sources. How this page is built and updated: Method.
Machine-readable:/api/v1/additives/modified-hop-extract.json