Yes! Our pouches are heat-sealable! Our pouches are a thicker material so you simply have to turn your impulse sealer up a little higher than you normally would. As an example I heat seal my single cookies in a poly/cello bag at a setting of ‘3’ but I turn my sealer up to a setting of ‘7’ when heat sealing our pouches. And be sure to heat seal the pouches ABOVE the tear notches.