British scientists have developed a new melt-proof recipe for the desirable cocoa treat, ideal to withstand a warm Kiwi summer.
The heat-tolerant chocolate, developed by Cadbury engineers at a plant near Birmingham, remains solid even when exposed to temperatures in excess of 40 degrees Celsius for more than three hours, reports British newspaper The Mail.
The secret to keeping a solid block is in the production process, specifically a step called conching, when metal beads grind together ingredients.
Scientists have developed a way of breaking down sugar which reduces the amount of fat which attaches to the sweet particles.
"We have found that it is possible to instil temperature-tolerant properties by refining the conched chocolate after the conching step,'' Cadbury wrote in its patent application for the new product.