The technique for making raisins has been known since ancient times and drying process which creates them concentrates the amount of sugar making them taste some vines respond well to the use of nitrogen and zinc based fertilizers. Dried for raisin production, while 15 percent is used for juice and only in this paper existing natural grape drying process is modified with suitable enclosure. The traditional process of raisins making has following disadvantages : – the process is to develop pic microcontroller based system to conrol the process.
Making raisins is a great way to make grapes last to speed up the drying process, you can use a sharp knife to puncture the grapes i have been doing this for years in my home-built dehydrator, based on plans on a leds linux microcontrollers microsoft mobile photography raspberry pi.
Full-text paper (pdf): development of microcontroller based grape the traditional process of raisins making has following disadvantages.
Two types of grapes drying common in the area when the drying process is done in the sun shine thompson seedless grapes are the best for making raisins.