I need some guidance on a task that a customer is asking our company to accomplish for them. They have a couple pallets of chocolate liquor discs that were mistakenly frozen by a carrier during transit from another warehouse. They have asked us to help them by slowly raising the temperature to an acceptable temperature range of 55F-65F in order to try and salvage the product w/o any cosmetic issues.
My question is, what would be the best process to slowly raise the temperature of this product if it is brought to our refrigerated warehouse at frozen temperatures? We have space that is -5F (Quick Freeze Racking), 0F, 36F, 40F, 55F, and Dry. We also have the capability with quick thaw racking (40F) and spacers. According to the customer this is a high level issue and carries a significant cost if they can't salvage the product. Any help or insight is appreciated!