[header] How to slice a cucumber [title] Pick the right cucumbers. [step] When selecting cucumbers, always choose firm darker colored cucumbers with no wrinkles or spongy spots. Some cucumbers at the store are waxed to prevent them from spoiling when they are out of season. 
The skins contain vitamin a, so try to buy unwaxed cucumbers, whose skin you can eat. [substeps] If you have purchased waxed cucumbers, make sure to peel them and discard the skin.