this post was submitted on 03 Jul 2023
78 points (98.8% liked)

Today I Learned (TIL)

6570 readers
1 users here now

You learn something new every day; what did you learn today?

/c/til is a community for any true knowledge that you would like to share, regardless of topic or of source.

Share your knowledge and experience!

Rules

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] Irenicus 16 points 1 year ago* (last edited 1 year ago)

Per the link

Historically it has been the policy of the Food and Drug Administration to allow the artificial coloring of the skins of mature oranges. It is a common practice to color the skins of oranges in certain orange growing areas of the country because of climatic or cultural conditions which cause the oranges to mature while still green in color. The coloring of the skins of oranges is done in one of two ways:

Adding a color to the skin of the orange, Citrus Red No. 2 (21 CFR 74.302(c)) if they are not intended or used for processing and they meet the maturity standards for the states in which they are grown.

Subjecting the orange to ethylene gas by a commercial process. This hastens the blanching process which apparently takes place normally after picking.