remember how we mentioned that store bought dried fruit often contains sulfur to make the fruit look a little more appealing? well, there is a simply, no chemical way to pre-tret fruit that also has benefit of restoring a portion of the vitamin c that is lost during the dehydration process.
The easiest way to do this is to dip the fruit slices in an ascorbic acid dip made by combining 2 tbsp ascorbic acid - or the equivalent of 5 grams of crushed vitamin c tablets - in one quart of water.
Another method is to blanch the fruit by putting slices in a steamer for five minutes then transferring them to an ice water bath to stop the cooking.
Though this process is really only good for a few fruit, such as apples,pears and apricots.