Regular use of descaling tablets is important for removing mineral limescale buildup in your machine and helps maintain proper grinder performance. Better tasting coffee: Descaling tablets help produce better tasting espresso and extend the life of your grinder. Prevent flavor transfer: Ideal for preventing flavor transfer when switching between regular, decaffeinated, and flavored coffee beans. Best use time: Descaling or decalcification should be performed according to each manufacturer's instructions, typically once a month. Use 2 tablets per cleaning. Safety cleansing: Suitable for use in automatic and semi-automatic coffee machines. After cleaning with the tablet, a protective layer forms on the internal pipelines, helping prevent coffee oil and impurities from accumulating and extending the machine's service life. Color: White. Material: Solid effervescent tablet. Package contents: 50 coffee machine effervescent tablets. Only the listed package content is included; other products are not included. Note: Lighting and display differences may cause slight variations in color. Measurement error allowed is +/- 1-3 cm.