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How to cook the Fimo paste?

Made by :Pauline Perles Co
Published on the :29/09/2025
How to cook the Fimo paste?
In summary

Firing Fimo clay is crucial to hardening your polymer creations. Preheat your oven to 110°C and respect the 30-minute baking time to obtain solid, long-lasting objects. Follow the baking instructions and make sure your work area is well ventilated for an optimal experience.

Baking Fimo clay is an essential step in making jewelry, small decorative items, or trendy accessories. Why bake Fimo clay? It hardens your small sculpted creations.
Baking time and temperature are the two key factors for properly baking your polymer clay—and thus ensuring successful creations!

How do you bake Fimo?

  • Preheat the oven to 110°C. Work with your Fimo on a tile surface or a silicone mat.
  • Place your creations on a baking sheet lined with parchment paper (baking paper). Be sure to space them out well so they don’t stick together during baking. Caution: Avoid using this same baking sheet for food.
    If you’re making beads and don’t have a Dremel, don’t forget to pierce them with a toothpick—and be sure to stick the toothpick into a ball of aluminum foil so they don’t flatten during baking. You can also arrange them on a baking rack.
  • When the oven reaches 110°C (thermostat 3), bake your creations for 30 minutes. It is essential to follow the baking time and temperature exactly. If you’re unsure, refer to the Fimo polymer clay packages for instructions.
  • When the baking time is up, remove the baking sheet from the oven.
  • Remove your creations from the baking sheet to prevent them from baking further, and let them cool.
  • Leave the oven door and window open to let the oven air out.
  • Once your creations have cooled completely, you can sand, polish, buff, or varnish them.

Note:

  • When you take your creations out of the oven, are they still soft and malleable? That’s normal! Fimo will be completely hard only after it has dried thoroughly—not before. Patience, patience!
  • It’s important to take certain precautions: work in a well-ventilated or well-air-circulated room to avoid any toxic fumes.
  • If the baking temperature is too high, your creations may brown, blister, or even melt.
    If the temperature is too low, your Fimo polymer clay may remain soft even after it has cooled completely. To monitor your oven’s temperature, you can use a suitable thermometer.


What is Fimo clay?

It’s one of the best-known brands of polymer clay in France, created by Staedtler, but there are many others: Cernit, Sculpey, Kato Polyclay...
This type of modeling clay can be used to make DIY costume jewelry and decorative items, such as pendants, earrings, cabochons, keychains, figurines, and home decor...
There’s a wide range of Fimo clay blocks, such as Fimo Soft, Fimo Effect, and Fimo Kids… You can also find liquid Fimo and Fimo Air, which hardens in the open air!
Fimo also offers a wide selection of colors and effects that remain unchanged after baking. Plus, they can be mixed together perfectly.
Fimo is baked in a traditional household oven or an electric oven (but never in a microwave, a gas oven, or a pot of hot water).

What can you make with Fimo clay? Need some creative ideas? Get inspired by our free tutorials for making polymer clay jewelry or decorative items. Let’s get started!
New to Fimo clay? Check out our list of essential tools to get started on the right foot. Our tips and step-by-step guides will help you learn how to use Fimo clay. You’ll then find it easy to create beautiful jewelry designs or animal figures.

Result
Schema  How to cook the Fimo paste?
Schema  How to cook the Fimo paste?
Pauline Perles Co
 Pauline Perles Co - Pauline Perles&Co
Moi, c'est Pauline, je suis assistante SEO chez Perles & Co et depuis mon arrivée, je me découvre une passion pour les bijoux DIY ! Quel plaisir de dénicher la nouveauté qui nous fait craquer et de confectionner des pièces personnalisées..! J'en apprends davantage chaque jour et je partage ça avec vous.

Is it necessary to bake Fimo clay?

Yes, you need to bake Fimo clay so that it hardens. There are also no-bake polymer clays that harden when exposed to air. These are self-hardening clays.

Can you paint Fimo clay after it's been baked?

Yes, once baked, Fimo clay can be painted, varnished, and even sanded.

How can you tell if Fimo clay is baked?

To determine whether Fimo clay is properly baked, you should focus primarily on how the piece behaves after it cools, rather than on its appearance right out of the oven.

  • When it comes out of the oven, Fimo clay is still slightly pliable—this is normal. Once cool, it should be firm and sturdy, without being brittle.
  • For a thin piece, you should be able to bend it slightly without it breaking. If it snaps cleanly, this is often a sign that it is undercooked.
  • The color should remain true to the original shade. Browning or yellowing usually indicates overheating.
  • The surface should be smooth and even. If the clay crumbles, scratches very easily, or leaves a powdery residue when touched, it hasn’t been baked long enough.

Helpful tip: Always follow the manufacturer’s recommended temperature (usually 110 °C for 30 minutes, depending on thickness) and use an oven thermometer, as home ovens are often inaccurate. It’s better to bake a little longer at the correct temperature than to bake at too high a temperature.

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Your questions (11)
You have a question about this sheet? Ask our team and the people who have already tested it. The Perles & Co community is here to help!
By Mouisette (14/05/2026 14:25:43)
Peut on laisser une décoration sur un mur extérieur aux intempéries ?
Merci
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Our Lucie expert answers you (19/05/2026 09:07:54)
Bonjour, la pâte fimo n'est pas conçue pour rester en extérieur de façon permanente. Elle peut supporter ponctuellement l’extérieur, mais les intempéries, l’humidité, le gel et les UV risquent avec le temps de l’abîmer, de la décolorer ou de la fragiliser. Pour une décoration murale extérieure, il est conseillé d’appliquer un vernis de protection adapté et de la placer si possible dans un endroit abrité.
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By So (11/01/2026 14:10:41)
Bonjour , je préchauffe mon four jusqu’à 110 degrés pour fimo, je mets mes pièces espacées sur un carreau de carrelage, je malaxe bien la pâte afin qu’elle soit bien souple, avant le passage au four les pièces sont lisses , et problème à la sortie du four certaines pièces ont des bulles 😬 pourquoi ???? Merci
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Our Lucie expert answers you (12/01/2026 09:55:56)
Bonjour, parfois même bien malaxée, la pâte peut garder des microbulles d’air : à la cuisson, l’air se dilate et remonte en surface, ce qui crée des cloques. Pour limiter ça, je vous conseille d'aplatir la pâte en fines plaques puis replie-la plusieurs fois afin de chasser l’air. Et s'il y a des bulles avant cuisson, perce-les très délicatement avec une aiguille.
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By Stephanie (04/10/2025 14:25:58)
Bonjour. Est-ce bien la pâte filou, que je dois utiliser pour confectionner des tiges de citrouille ? Merci à vous pour votre réponse
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Our Lucie expert answers you (07/10/2025 14:51:56)
Bonjour, vous pouvez utiliser de la pâte polymère type Fimo soft ou Cernit pour ce genre de projet. Merci
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By Alejandra (10/05/2025 21:18:28)
de temps le faire cuire
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Our Laurence expert answers you (13/05/2025 09:16:41)
Bonjour,
Le temps de cuisson est d'environ 30 minutes.
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By Tonivida (08/09/2024 21:26:11)
bonjour
y 'a t il un volume maximum ou la cuisson n'est pas optimisé?
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Our Tiffanie J. expert answers you (09/09/2024 09:14:17)
Bonjour, si vous faites des grosses pièces, il va falloir laisser cuire plus longtemps et faire des tests. De plus, la cuisson risque d'être compromise si vous avez une pièce dont l'épaisseur est très variable. Par exemple, très fine sur un bout et très épaisse à un endroit.
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Your reviews (1)
Notices subject to control
5/5
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By Marie (posted on : 01/03/2024 )
Instructions de cuisson très utiles merci
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Credits

Perles & Co, Internet & E-Commerce company [29/09/2025] Any reproduction, representation, adaptation, in any form whatsoever, even partial, is prohibited, except for reproduction for private use not intended for collective use, representation in the family circle (art. L 122-5 CPI) and online publishing on condition that the source is mentioned and a link is included to the corresponding page of our site www.perlesandco.com.