Significats de imperfect sealing en anglès

Putrefaction is usually caused by imperfect sealing.

Rubber after usage becomes hard and inelastic; it may cause imperfect sealing and hence decay of the fruit.

Spoilage is due to imperfect jars, imperfect rubbers, imperfect sealing of tin cans, careless blanching, insufficient cold dipping or poor sterilizing.