While buying any type of peeler, this can be a critical question. You need to make sure that it’s a reliable brand to start with. This will make the sharpness last much longer, without having to sharpen it by yourself. To ensure it’s maintained for as long as possible, don’t use too much washing soap or scrub it too hard. For fruits and veggies, you can simply run it under a stream of water to remove all the smaller particles and store it away. You can invest in a sharpener to use it as you require, and this often works for kitchen knives too. You can also take it to the store every couple of months to have them do it for you.