Kitchen IQ Zester 4 "Brilliant zester" Mrs Sally Slade 24 February 2018 Brilliant handheld zester. Easiest zester I’ve ever used. However, such a shame that the glue used to put on the labels does not come off when peeled. Removing the glue is not easy and eaves the cover and zest holder cloudy. A note from the team Thank you for placing your review and for speaking with me today. We trust the tips we've provided and noted below have helped with removal of the glue residue. Tip 1 - Apply vegetable oil to the area and let it soak in for a couple of hours; Use a warm (not hot) hair dryer to soften the glue, and wipe the residue off; Use hot soapy water and cloth for a final clean. Tip 2 - Soak a paper towel in a warm vinegar solution and rub it over the adhesive. Let it sit for five minutes then rinse in hot soapy water.