Propellant
E943b (isobutane): what it is, its sources, vegan or not
E943b is isobutane, a propellant. E943b can come from natural gas or petroleum. Vegan and vegetarian profiles get Fits you.
By Bravoora teamUpdated Sources checked 4 sourcesHow we check
Fits you
for a vegan profile
E943b=natural gas or petroleum
What is E943b?
E943b (isobutane) is a propellant, an additive that pushes a food out of its container, as in a spray can. Allowed in the EU only in pan sprays that stop food sticking.
What is E943b made from?
E943b can come from natural gas or petroleum.
- Natural gas
- Petroleum
Is E943b vegan?
Fits you. E943b can come from natural gas or petroleum. Nothing from an animal.
What the app says to each profile, and the reason it shows.
What other names does E943b have on a label?
On a label, E943b can also appear as “INS 943b”, “Propellant (943b)”, “Propellant (E943b)” or “Isobutane”.
Any of these on a pack means E943b. The checker reads them all.
What would change the answer for E943b?
For E943b, only the ingredient list itself: a code the camera cannot read gets Needs one more scan, and the app never guesses a code it cannot see.
Sources: EU, US and Codex additive rules
Where additives are listed and approved. Bravoora reads the source and the diet; it does not rate the hazard.
- EU Regulation 1333/2008 on food additives (the E-number list)
- EU Regulation 1169/2011, Annex II: the allergen sources a label must name
- US FDA: Food Additive Status List
- FAO/WHO Codex: General Standard for Food Additives (GSFA) online
Names and classes cross-checked with Open Food Facts (Open Database License).
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