DryAgingBags functions as a membrane, bonding with the moist proteins on the surface of the meat. Do not clean or dry the surface of the meat before inserting it into the DryAgingBags.Take special care when sealing the DryAgingBags material, so that you achieve and maintain the very important, perfect seal. Remove any visible residues of meat or blood on the inside of the sealing surface – to prevent any residues from getting onto this critical surface, you can fold the opening of the bag outwards when inserting the meat, and fold it back again once the meat is inside. Now, seal the bag roughly 10 cm from the meat.