Non-toxic polymer clay after baking?

I know this is old, but given the comments, I prefer to respond to help those who might be asking the same question in 2022. Fimo clay is absolutely not intended for food use; it's plastic that has been baked, so definitely not for a baby.
It's actually advised not to bake polymer clay in the same oven as your food, but to have an oven solely for this purpose.

Miley fimo, the toxicity of something is not necessarily visible, and just because you “haven't noticed” it doesn't mean it's not there. We ingest invisible toxic substances every day, whether in the air or food, but we wouldn't necessarily be able to perceive it. So be careful with this very unsubstantiated and poorly informed discourse on the subject.
Furthermore, it is not advised to wear polymer earrings too close to the ear that touches the lobe.
So yes, it is toxic, and you should not breathe the air but ventilate during baking, and just because you don't feel anything does not mean it isn't harmful. We use a lot of toxic products without necessarily feeling it! Just like Sophie the Giraffe, which we used for years, and which turned out to be toxic, etc....
So be cautious about the idea your comment might provoke, that it is not toxic because you don't have that sensation.
It would have been better if you had informed yourself before posting such a comment, as it will give the impression to people that it's not toxic, since you, who have been doing this for three years, say you haven't felt anything;
Just because you haven't gotten sick doesn't mean it's not toxic. It's even worse, as this can develop over time and turn out to be catastrophic after a few years; A bit like smoking, where the effects are not immediately visible.
So be careful with this type of judgment.

Miley fimo, the toxicity of something is not necessarily visible and just because you haven't "noticed" it doesn't mean it's not there. Every day we ingest invisible toxic substances, whether in the air or in food, but we would be unable to notice. So be careful with this very poorly argumented and poorly informed discourse on the subject.
In fact, we do not recommend wearing polymer earrings too close to the ear, which touches the lobe.
So yes, it is toxic, and you should not breathe the air but ventilate during cooking, and it's not because you don't feel it that it's not there. We use tons of toxic products and we don't necessarily feel them! A bit like Sophie the Giraffe which we used for years, and which turned out to be toxic etc....
So be careful with the idea that your comment can provoke, that it's not toxic because you don't have the sensation of it.
You would have been better off researching before posting such a comment, as this will give the impression to people that it is not toxic, since you, who have been doing it for three years, say you haven't felt anything;
Just because you haven't fallen ill doesn't mean it's not toxic. It's even worse, as it can accumulate over time and turn out to be catastrophic after a few years; A bit like cigarettes, whose effects are not seen right away.
So be cautious with this type of judgment.

Hello,

Regarding getting informed, you should start by doing it yourself rather than posting, twice to convince yourself better, what is not a substantiated argument but just your impressions.

The precautionary principle claimed to the extreme does not hold well: the use of Fimo clay and more generally competing polymers is old enough (several decades) that we should have had observations from pharmacovigilance and material vigilance if something adverse had occurred; the example of cigarettes is rather poorly chosen because while, indeed, tars and other carcinogenic substances have a delayed effect, nicotine is a violent poison with an immediate effect whose consequences are necessarily felt (notably digestive or cardiovascular disorders).

One cannot carelessly confuse toxicity by simple contact (the transcutaneous passage is moreover implausible when it comes to polymers that are chemically always quite neutral) with a contact allergy that is always possible (well documented for example for costume jewelry containing zinc or other metals).

If the questioned clays were toxic even by inadvertent ingestion except of course by respiratory obstruction (small pieces in young children), they would have long been banned as they have undergone scrutiny by health certification authorities, particularly Swiss ones if I remember correctly).

They are of course not designed for food use but if we were to ban any polymer-containing items, we would also ban Tupperware-type containers or plastic water or soda bottles, which have been tested against leaching from the container into the contents despite being unlikely in terms of hydrophobic plastics.

Prolonged cooking or at too high a temperature releases hydrochloric gas which is of course toxic when present at high concentration in a confined environment (hence the idea of ventilating); the risk from ingestion is not credible (more so than the chlorination of tap water or swimming pools when you swallow a mouthful?) especially since hydrochloric gas is, like all gases, volatile, remaining a risk by inhalation or irritation of mucous membranes in the case of significant concentration (when large quantities are used in a closed environment).