No, the lemon cream can be prepared without warming up anything. You only need to pour 250ml of milk at room temperature in a bowl, add the content of one pouch little by little while mixing and stir with a fork for 2 minutes or with a beater for 1 minute, until the lemon cream becomes homogeneous and smooth, ready to be served. Then you can use it to fill your cakes, cannoli or your croissants and offer even tastier desserts to your family and friends.