Hello all,
Well, it's been over 6 months since I've signed in to RPF following various distractions so it's good to be back!
I've been almost 10 years now on this diet and, seeking time/labour food preparation solutions, have recently purchased a heavy duty meat mincer/grinder. Aware that many here, including PaleoPhil and Lex if I recall correctly, consume their meat largely in ground form I thought this would offer me great time savings from my long-term hand slicing preparation methods.
What is the general consensus on consumption of ground/minced beef?
What are your opinions on ground/minced meats with regard to oxidation of fats and it's potential detriment to health?
I've been experimenting with my new toy and have been thoroughly enjoying homemade dehydrated ground beef burgers/patties - basically, fresh ground meat pressed into patties/burgers and dehydrated at 105deg for 2-12hrs. I've been making these in bulk over the last week or so which has enabled me to enjoy up to 5 days worth of pre-prepared food with no further preparation or clean-up required!
But, I am genuinely concerned about the long-term implications of this. A very quick review of the literature seems inconclusive. A 2008 study on cholesterol & lipid oxidation by the Swedish University of Agricultural Science states '
COPs significantly increased in raw beef during storage: after 1, 8 and 15 days since packaging COPs were at the levels of 10.4, 30.7 and 60.5 ?g/g of fat, respectively.' whilst a recent study by the University of Bologna states '
In raw beef, cholesterol and lipid oxidation developed at a slow rate. Cholesterol oxidation products (COPs) did not significantly vary (approximately 8 microg COPs g(-1) of fat) over 8 days, while in the same period thiobarbituric acid reactive substances (TBARS) less than doubled (from 0.7 to 1.2 malondialdehyde equivalents kg(-1) of muscle).'
My own intuitions and basic knowledge strongly advises me against continuing this practice particularly in the, perhaps coincidental, light of the fact that I've developed a cough/cold recently which I can't seem to shake off (very unusual!).
What are other's thoughts?
Michael