Food additives Europe numbers: E599
Perlite is not generally recognized as a safe (GRAS) food excipient. Here's why:
- Purpose: Perlite is a volcanic glass known for its insulating properties and light weight. It's commonly used in horticulture and construction materials.
- Food Safety Concerns: Perlite can contain crystalline silica dust, which can be harmful if inhaled. Food safety regulations are strict to prevent any potential health risks from food consumption.
There is one specific approved use of perlite related to food:
- Filter Aid: The FDA has approved the limited use of perlite as a filter aid during specific food processing steps (https://www.govinfo.gov/content/pkg/CFR-2023-title21-vol4/html/CFR-2023-title21-vol4.htm). In this case, the perlite is used for filtration and isn't intended to be present in the final food product.
Alternatives to Perlite in Food:
There are safer alternatives for filtration purposes in food processing, such as diatomaceous earth or cellulose filters.
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