Snooze 2978, when l use aerosol starch, paint, or adhesives, after use, l turn can upside down and give a squirt away from anything until just propellant ( air hiss) blows. That clears the nozzle.l was taught this by my dad, a very handy fellow 🙂 . My cans work until they're empty most times. Now if l could just stop dropping things!