Cafetto E29 TabletsE29 Espresso Machine Cleaning Tablets Safely and completely remove coffee oils and residues of selected fully automatic espresso machines. They are perfectly suited to machines that require a round tablet of 2. 9g. E29 tablets have been formulated to dissolve in automatic cleaning cycles to provide optimal cleaning performance. These high performance tablets are highly effective while being non corrosive. To be used for Eversys machine only