At this stage, the Mifold Grab-and-Go booster seat cannot be cleaned in a dishwasher. We have designed Mifold to be easy to clean by washing the surfaces with a mild solution of soap and water. Do not use bleach. Remove the soap by wiping with clean water and after washing then air dry. Although we had hoped that the Mifold Grab-and-Go booster seat could also be cleaned in a dishwasher, at this stage we have not tested how a dishwasher may affect components and specifically, how a dishwasher may affect performance and the flame retardant properties of the materials. If there is an update on this issue we will publish revised guidelines via our website and social media channels.