Serait-ce un problème de pression? Espresso sol est généralement très bien, et la machine a besoin d'assez de puissance pour l'eau de passer à travers. +1 pour la photo. Merci. Nous avons toujours utiliser de l'eau filtrée et ont rarement exécuter hors de l'eau (certainement pas pour une longue période). Je vais essayer de détartrage il. Puisqu'il y a quelques questions de ce type, je ne pense pas qu'une courte liste de livres intéressants sur le sujet du café est trop large. Il ya des milliers, mais la plupart ne sont pas la peine de mentionner. De sens, surtout depuis qu'il est conseillé d'obtenir une collation gras (ce qui est plus difficile pour l'organisme à digérer). Cependant, il semble étrange qu'un si petit snack a un énorme impact sur la digestion.

Une question similaire a été posée sur la cuisson de la pile d'échange tout à fait quelques années en arrière. Les réponses et les commentaires il y a surtout l'adresse de votre premier et troisième points.

Il semble qu'il y a consensus que la formation de bulles diffère entre l'instantané et de la brassée. Cependant, je suppose que de votre commentaire que votre café décaféiné et réguliers ont été instantanée. Il peut toujours y avoir des différences dans les bulles. De Wayfaring Stranger sur la Cuisson SE:

La mousse de café/bulles est composé d'un mélange de protéines, de sucres, de gouttelettes d'huile, de la caféine, etc, et la durée de vie d'une bulle est fortement dépendante de la composition de sa membrane. Étant donné que le café décaféiné est un café qui est en extraction au solvant, il ne serait pas du tout surprenant de voir sa composition différente affectant la durée de vie de la bulle. Cependant, personne ne semble avoir mené des études définitives de la question.

Il y a une variété de la caféine bandelettes de test qui pourrait être la peine d'investir dans si vous êtes régulièrement de servir le café à quelqu'un qui est sensible à la caféine, mais je ne sais pas si c'est faisable, il serait de créer votre propre avec quelques à la maison de la chimie.

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