BENEFITS OF FREEZE-DRYING OR DEHYDRATING
The strategies used to radically decrease the moisture content material of the meals reviewed right here have the next benefits over baking or extruding the meals at excessive temperatures:
*These strategies protect the meals (practically stopping the organic exercise that causes a meals to decay) with much less injury to the components’ pure enzymes or nutritional vitamins than cooking temperatures trigger.
*This implies the meats and different components are, by strict definition, uncooked. For individuals who imagine in the advantages of uncooked diets, that is big. (We’ll talk about those that contemplate uncooked meals to be harmful in a minute.)
*When rehydrated, these meals are extremely palatable to most canine. It might be as a result of focus of taste in freeze-dried meals components or their minimal processing. Dogs in Malta with poor appetites (like very senior or chronically unwell canine) might settle for these meals when nothing else appeals.
*As a generalization, the makers of those merchandise are focusing on the highest finish of the market and have a unprecedented dedication to sourcing top-quality components
DIFFERENCES BETWEEN FREEZE-DRYING AND OTHER DRYING METHODS
Freeze-dryers expose meals to low temperatures, freezing them comparatively rapidly, after which to excessive air strain. When the strain contained in the freeze-drying chamber is excessive sufficient, small heating models are turned on, heating the trays that the meals sits on, and inflicting the frozen water (a strong at that time) within the meals to rework right into a gasoline (water vapor). Pumps pull the vapor out of the chamber whereas protecting the inner air strain excessive.
Like freeze-drying, air-drying can be achieved at low temperatures, nevertheless it takes longer and leaves meats and fat susceptible to oxidation (spoilage); most meals are dried with temperatures of 140ºF to 180ºF. At these temperatures, the meals is definitely calmly cooked; the mobile construction (and thus the aroma and style) of meats, fruits, and greens really modifications and the style and look. In distinction, correct freeze-drying doesn’t have an effect on the looks or style of meals as a lot.
The freeze-drying course of sounds excessive, however the course of really leaves most meals much less broken than dehydration, which toughens meats and different components.
The Meals Security Modernization Act (FSMA) of 2011 accommodates zero-tolerance insurance policies for pet meals that check optimistic for pathogenic micro organism. Because of this, among the producers of freeze-dried uncooked meals topic their merchandise to a “kill step” referred to as high-pressure processing (also referred to as high-pressure pasteurization, and in both case abbreviated as HPP); they don’t wish to danger elevated surveillance or recollects from meals management officers.
The homeowners of some different firms, nonetheless, imagine so strongly in the advantages of uncooked meals that they refuse to make use of a kill step. As a substitute, they depend on the standard of their components and their very own meals “hazard evaluation and demanding management factors”(HACCP) plans to stop promoting contaminated merchandise. They perceive that the FSMA insurance policies are current to guard canine and their homeowners, and that at the moment’s human meals provide does generally include pathogens – however in addition they have noticed that almost all wholesome canine can simply digest and profit from uncooked meals – even uncooked meals that will include some pathogens. (Few wholesome canine have bother with Salmonella, for instance, although Listeria and e. Coli are one other story.) And, importantly, they have interaction and educate their shoppers about these info.
There are food-industry specialists who really feel strongly that HPP is a really protected expertise, and others who fear that it might alter meals on a molecular stage. We really feel effective about HPP; we’ve been to HPP crops and noticed the uncooked pet food earlier than, throughout, and after remedy and believe that it isn’t harmed or made unsafe to feed. Alternatively, we respect the proper of homeowners to feed uncooked meals that haven’t undergone a kill step – so long as they’re knowledgeable concerning the dangers to which they’re subjecting themselves and their canine.
Among the firms make the most of a “check and maintain” program whereby completed merchandise are examined for pathogens and never launched on the market till outcomes point out the merchandise are uncontaminated. Shopping for a product from firms that make use of a test-and-hold program is an efficient strategy to ameliorate fears a couple of uncooked and unpasteurized weight loss program.
SUBSCRIBERS ONLY: Click here to see Whole Dog Journal’s list of approved freeze-dried and dehydrated dog foods