----DUCK FAT IS A HEALTHY ALTERNATIVE TO BUTTER---
A COMPARISON OF OLIVE OIL, DUCK FAT AND BUTTER
The image above shows olive oil, duck fat at room temperature. The more solid at room temperature indicates a higher concentration of saturated fats.
The melting point of Duck Fat is 14° C. The melting point of butter is between 32 °C and 35 °C (90 °F and 95 °C). The melting point of Olive Oil is -6 °C or 21 °F.
Fatty Acid Compositions of Duck Fat, Olive Oil and Butter
Duck fat contains 35.7% saturates, 50.5% monounsaturates (high in linoleic acid) and 13.7% polyunsaturated fats.(which contains Omega-6 and Omega-3 essential oils).
Olive oil contains: 75% monounsaturated fat (mostly oleic acid) 13% saturated fat and 10% Omega-6 linoleic acid and 2% Omega-3 linoleic acid.
Butter -- Fats in butter are very variable depending on feed and season...The most abundant FA in butter was the saturated fat palmitic acid (C16:0), followed by myristic (C14:0), stearic (C18:0), and the mono-unsaturated fat oleic acid (C18:1n9).-- See Characterization of Retail Conventional, Organic, and Grass Full-Fat Butters by Their Fat Contents, Free Fatty Acid Contents, and Triglyceride and Fatty Acid Profiling
ABOUT DUCK FAT
See Also: How to Render Duck Fat
Duck confit is one of my favorite dishes to cook for guests. It can be made several days ahead and stays well in the refrigerator immersed in duck fat for weeks. The only difficult part in preparing the dish is accumulating all the duck fat that is needed to completely cover the legs during cooking. If one purchases duck fat the cost of the dish rises sharply. . For that reason I tend to buy a whole duck, render my own duck fat and then use the carcass for duck stock. A whole duck can render approximately 12 oz. of fat. And, of course you will be left to two duck breasts for another meal.
Duck is actually a great value in cooking when one considers what a whole duck costs and what the end results are.
Furthermore, what many are unaware of is the health benefits to duck fat. Duck fat contains 35.7% saturates, 50.5% monounsaturates (high in linoleic acid) and 13.7% polyunsaturated fats.(Which contains Omega-6 and Omega-3 essential oils). This compares to olive oil which is: 75% monounsaturated fat (mostly oleic acid) 13% saturated fat and 10% Omega-6 linoleic acid and 2% Omega-3 linoleic acid. The main difference between chicken, turkey and duck is that duck contains more linoleic acid, which chicken and turkey contain a higher amount of polyunsaturated fats. It appears that duck and goose fat is more like olive oil than it is like butter or beef.
Additional Facts about Duck Meat --Source: Fatty Acids in Foods and Their Health Implications" Ching Kuang Chow
"Duck and goose muscle are predominantly dark muscle throughout the carcass. Duck muscle contains 5.95% lipid without the skin and 39.34% with skin. Muscle alone contains 50.3% saturated, 33.4% monounsaturated and 16.3% polyunsaturated fatty acids, whereas duck with skin contains 35.7% saturates; 50.5% monounsaturates and 13.7% polyunsaturates As with chicken and turkey the addition of the skin increases the proportion of monounsaturated fatty acids in the lipid from duck. The major fatty acids in duck fat are similar to those in chicken and turkey except for the absence of long chain PUFA's and a higher proportion of linoleic acid. " Source: "Fatty Acids in Foods and Their Health Implications" Ching Kuang Chow
Cleaning off the carcass and rendering the duck fat will yield approximately 12 oz. See -- How to Make Duck Fat
In the United States, 315 of every 100,000 middle-aged men die of heart attacks each year. In France the rate is 145 per 100,000. However, In the Gascony region, where goose and duck liver form a staple of the diet, this rate is only 80 per 100,000 (See below: Can Foie Gras aid the heart?) This phenomenon has recently gained international attention as the French Paradox --They eat more fat in Gascony than anyplace else, but they live the longest .
STORING DUCK FAT
It is important in storing duck fat that there are no water soluble products in the fat. This can increase the level of oxidation and decrease the lifetime of the fat. After leaving the fat to rest in the refrigerator for a day or two remove and scrape off the liquid at the bottom which will be an excellent source of rich duck stock for your sauce (See image below).
Also skim any nonfat substances that may have risen to the top of the fat. What's left will stay fresh in the refrigerator for a long period of time and can be used again for confit or frying vegetables -- it is an excellent alternative to butter.