You can thaw and refreeze meat: five food safety myths busted
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This time of year, most fridges are stocked up with food and drinks to share with family and friends. Let’s not make ourselves and our guests sick by getting things wrong when preparing and serving food.
As the weather warms up, so does the environment for micro-organisms in foods, potentially allowing them to multiply faster to hazardous levels. So put the drinks on ice and keep the fridge for the food.
But what are some of those food safety myths we’ve long come to believe that aren’t actually true?
Myth 1: if you’ve defrosted frozen meat or chicken you can’t refreeze it
From a safety point of view, it is fine to refreeze defrosted meat or chicken or any frozen food as long as it was defrosted in a fridge running at 5°C or below. Some quality may be lost by defrosting then refreezing foods as the cells break down a little and the food can become slightly watery.
Another option is to cook the defrosted food and then divide into small portions and refreeze once it has stopped steaming. Steam in a closed container leads to condensation, which can result in pools of water forming. This, combined with the nutrients in the food, creates the perfect environment for microbial growth. So it’s always best to wait about 30 minutes before refrigerating or freezing hot food.
Plan ahead so food can be defrosted in the fridge, especially with large items such as a frozen turkey or roll of meat. If left on the bench, the external surface could be at room temperature and micro-organisms could be growing rapidly while the centre of the piece is still frozen!
Myth 2: Wash meat before you prepare and/or cook it
It is not a good idea to wash meats and poultry when preparing for cooking. Splashing water that might contain potentially hazardous bacteria around the kitchen can create more of a hazard if those bacteria are splashed onto ready-to-eat foods or food preparation surfaces.
It is, however, a good idea to wash fruits and vegetables before preparing and serving, especially if they’re grown near or in the ground as they may carry some dirt and therefore micro-organisms.
This applies particularly to foods that will be prepared and eaten without further cooking. Consuming foods raw that traditionally have been eaten cooked or otherwise processed to kill pathogenic micro-organisms (potentially deadly to humans) might increase the risk of food poisoning.
Fruit, salad, vegetables and other ready-to-eat foods should be prepared separately, away from raw meat, chicken, seafood and other foods that need cooking.
Myth 3: Hot food should be left out to cool completely before putting it in the fridge
It’s not OK to leave perishable food out for an extended time or overnight before putting it in the fridge.
Micro-organisms can grow rapidly in food at temperatures between 5° and 60°C. Temperature control is the simplest and most effective way of controlling the growth of bacteria. Perishable food should spend as little time as possible in the 5-60°C danger zone. If food is left in the danger zone, be aware it is potentially unsafe to eat.
Hot leftovers, and any other leftovers for that matter, should go into the fridge once they have stopped steaming to reduce condensation, within about 30 minutes.
Large portions of hot food will cool faster if broken down into smaller amounts in shallow containers. It is possible that hot food such as stews or soup left in a bulky container, say a two-litre mixing bowl (versus a shallow tray), in the fridge can take nearly 24 hours to cool to the safe zone of less than 5°C.
Myth 4: If it smells OK, then it’s OK to eat
This is definitely not always true. Spoilage bacteria, yeasts and moulds are the usual culprits for making food smell off or go slimy and these may not make you sick, although it is always advisable not to consume spoiled food.
Pathogenic bacteria can grow in food and not cause any obvious changes to the food, so the best option is to inhibit pathogen growth by refrigerating foods.
Myth 5: Oil preserves food so it can be left at room temperature
Adding oil to foods will not necessarily kill bugs lurking in your food. The opposite is true for many products in oil if anaerobic micro-organisms, such as Clostridium botulinum (botulism), are present in the food. A lack of oxygen provides perfect conditions for their growth.
Outbreaks of botulism arising from consumption of vegetables in oil – including garlic, olives, mushrooms, beans and hot peppers – have mostly been attributed to the products not being properly prepared.
Vegetables in oil can be made safely. In 1991, Australian regulations stipulated that this class of product (vegetables in oil) can be safely made if the pH (a measure of acid) is less than 4.6. Foods with a pH below 4.6 do not in general support the growth of food-poisoning bacteria including botulism.
So keep food out of the danger zone to reduce your guests’ risk of getting food poisoning this summer. Check out other food safety tips and resources from CSIRO and the Food Safety Information Council, including testing your food safety knowledge.
Cathy Moir, Team leader, Microbial and chemical sciences, Food microbiologist and food safety specialist, CSIRO
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Dates vs Prunes – Which is Healthier?
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Our Verdict
When comparing dates to prunes, we picked the prunes.
Why?
First let’s note: we’re listing the second fruit here as “prunes” rather than “plums”, since prunes are dehydrated plums, and it makes more sense to compare the dried fruit to dates which are invariably dried too. Otherwise, the water weight of plums would unfairly throw out the nutrient proportions per 100g (indeed, upon looking up numbers, dates would overwhelmingly beat plums easily in the category of pretty much every nutrient).
So let’s look at the fairer comparison:
In terms of macros, dates have a little more protein, carbohydrate, and fiber. This is because while both are dried, prunes are usually sold with more water remaining than dates; indeed, per 100g prunes still have 30g water weight to dates’ 20g water weight. This makes everything close, but we are going to call this category a nominal win for dates. Mind you, hydration is still good, but please do not rely on dried fruit for your hydration!
When it comes to vitamins, dates have more of vitamins B5 and B9, while prunes have more of vitamins A, B2, B3, B6, C, E, K, and choline. A clear win for prunes here.
In the category of minerals, it’s a similar story: dates have more iron, magnesium, and selenium, while prunes have more calcium, copper, manganese, phosphorus, potassium, and zinc. Another win for prunes.
In short, enjoy either or both, but prunes win on overall nutritional density!
Want to learn more?
You might like to read:
From Apples to Bees, and High-Fructose Cs: Which Sugars Are Healthier, And Which Are Just The Same?
Take care!
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Foot Drop!
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝Interesting about DVT after surgery. A friend recently got diagnosed with foot drop. Could you explain that? Thank you.❞
First, for reference, the article about DVT after surgery was:
DVT Risk Management Beyond The Socks
As for foot drop…
Foot drop is descriptive of the main symptom: the inability to raise the front part of the foot due to localized weakness/paralysis. Hence, if a person with foot drop dangles their feet over the edge of the bed, for example, the affected foot will simply flop down, while the other (if unaffected) can remain in place under its own power. The condition is usually neurological in origin, though there are various more specific causes:
When walking unassisted, this will typically result in a distinctive “steppage gait”, as it’s necessary to lift the foot higher to compensate, or else the toes will scuff along the ground.
There are mobility aids that can return one’s walking to more or less normal, like this example product on Amazon.
Incidentally, the above product will slightly shorten the lifespan of shoes, as it will necessarily pull a little at the front.
There are alternatives that won’t like this example product on Amazon, but this comes with the different problem that it limits the user to stepping flat-footedly, which is not only also not an ideal gait, but also, will serve to allow any muscles down there that were still (partially or fully) functional to atrophy. For this reason, we’d recommend the first product we mentioned over the second one, unless your personal physiotherapist or similar advises otherwise (because they know your situation and we don’t).
Both have their merits, though:
Trends and Technologies in Rehabilitation of Foot Drop: A Systematic Review
Of course, prevention is better than cure, so while some things are unavoidable (especially when it comes to neurological conditions), we can all look after our nerve health as well as possible along the way:
Peripheral Neuropathy: How To Avoid It, Manage It, Treat It
…as well as the very useful:
What Does Lion’s Mane Actually Do, Anyway?
…which this writer personally takes daily and swears by (went from frequent pins-and-needles to no symptoms and have stayed that way, and that’s after many injuries over the years).
If you’d like a more general and less supplements-based approach though, check out:
Steps For Keeping Your Feet A Healthy Foundation
Take care!
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Tips For Avoiding/Managing Rheumatoid Arthritis
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Avoiding/Managing Rheumatoid Arthritis
Arthritis is the umbrella term for a cluster of joint diseases involving inflammation of the joints, hence “arthr-” (joint) “-itis” (suffix used to denote inflammation). These are mostly, but not all, autoimmune diseases, in which the body’s immune system mistakenly attacks our own joints.
Inflammatory vs Non-Inflammatory Arthritis
Arthritis is broadly divided into inflammatory arthritis and non-inflammatory arthritis.
You may be wondering: how does one get non-inflammatory inflammation of the joints?
The answer is, in “non-inflammatory” arthritis, such as osteoarthritis, the damage comes first (by general wear-and-tear) and inflammation generally follows as part of the symptoms, rather than the cause. So the name can be a little confusing. In the case of osteo- and other “non-inflammatory” forms of arthritis, you definitely still want to keep your inflammation at bay as best you can, but it’s not as absolutely critical a deal as it is for “inflammatory” forms of arthritis.
We’ll tackle the beast that is osteoarthritis another day, however.
Today we’re going to focus on…
Rheumatoid Arthritis
This is the most common of the autoimmune forms of arthritis. Some quick facts:
- It affects a little under 1% of the global population, but the older we get, the more likely it becomes
- Early onset of rheumatoid arthritis is most likely to show up around the age of 50 (but it can show up at any age)
- However, incidence (not onset) of rheumatoid arthritis peaks in the 70s age bracket
- It is 2–4 times more common in women than in men
- Approximately one third of people stop work within two years of its onset, and this increases thereafter.
Well, that sounds gloomy.
Indeed it’s not fun. There’s a lot of stiffness and aching of joints (often with swelling too), loss of joint function can be common, and then there are knock-on effects like fatigue, weakness, and loss of appetite.
Beyond that it’s an autoimmune disorder, its cause is not known, and there is no known cure.
Is there any good news?
If you don’t have rheumatoid arthritis at the present time, you can reduce your risk factors in several ways:
- Having an anti-inflammatory diet. Get plenty of fiber, greens, and berries. Fatty fish is great too, as are oily nuts. On the other side of things, high consumption of salt, sugar, alcohol, and red meat are associated with a greater risk of developing rheumatoid arthritis.
- Not smoking. Smoking is bad for pretty much everything, including your chances of developing rheumatoid arthritis.
- Not being obese. This one may be more a matter of correlation than causation, because of the dietary factors (if one eats an anti-inflammatory diet, obesity is less likely), but the association is there.
There are other risk factors that are harder to control, such as genetics, age, sex, and having a mother who smoked.
See: Genetic and environmental risk factors for rheumatoid arthritis
What if I already have rheumatoid arthritis?
If you already have rheumatoid arthritis, it becomes a matter of symptom management.
First, reduce inflammation any (reasonable) way you can. We did a main feature on this before, so we’ll just drop that again here:
Next, consider the available medications. Your doctor may or may not have discussed all of the options with you, so be aware that there are more things available than just pain relief. To talk about them all would require a whole main feature, so instead, here’s a really well-compiled list, along with explanations about each of them, up to date as of this year:
Rheumatoid Arthritis Medication List (And What They Do, And How)
Finally, consider other lifestyle adjustments to manage your symptoms. These include:
- Exercise—gently, though! You do not want to provoke a flare-up, but you do want to maintain your mobility as best you can. There’s a use-it-or-lose-it factor here. Swimming and yoga are great options, as is tai chi. You may want to avoid exercises that involve repetitive impacts to your joints, like running.
- Rest—while keeping mobility going. Get good sleep at night (this is important), but don’t make your bed your new home, or your mobility will quickly deteriorate.
- Hot & cold—both can help, and alternating them can reduce inflammation and stiffness by improving your body’s ability to respond appropriately to these stimuli rather than getting stuck in an inappropriate-response state of inflammation.
- Mobility aids—if it helps, it helps. Maybe you only need something during a flare-up, but when that’s the case, you want to be as gentle on your body as possible while keeping moving, so if crutches, handrails etc help, then by all means get them and use them.
- Go easy on the use of braces, splints, etc—these can offer short-term relief, but at a long term cost of loss of mobility. Only you can decide where to draw the line when it comes to that trade-off.
You can also check out our previous article:
Managing Chronic Pain (Realistically!)
Take good care of yourself!
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What’s the difference between physical and chemical sunscreens? And which one should you choose?
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Sun exposure can accelerate ageing, cause skin burns, erythema (a skin reaction), skin cancer, melasmas (or sun spots) and other forms of hyperpigmentation – all triggered by solar ultraviolet radiation.
Approximately 80% of skin cancer cases in people engaged in outdoor activities are preventable by decreasing sun exposure. This can be done in lots of ways including wearing protective clothing or sunscreens.
But not all sunscreens work in the same way. You might have heard of “physical” and “chemical” sunscreens. What’s the difference and which one is right for you?
How sunscreens are classified
Sunscreens are grouped by their use of active inorganic and organic ultraviolet (UV) filters. Chemical sunscreens use organic filters such as cinnamates (chemically related to cinnamon oil) and benzophenones. Physical sunscreens (sometimes called mineral sunscreens) use inorganic filters such as titanium and zinc oxide.
These filters prevent the effects of UV radiation on the skin.
Organic UV filters are known as chemical filters because the molecules in them change to stop UV radiation reaching the skin. Inorganic UV filters are known as physical filters, because they work through physical means, such as blocking, scattering and reflection of UV radiation to prevent skin damage.
Nano versus micro
The effectiveness of the filters in physical sunscreen depends on factors including the size of the particle, how it’s mixed into the cream or lotion, the amount used and the refraction index (the speed light travels through a substance) of each filter.
When the particle size in physical sunscreens is large, it causes the light to be scattered and reflected more. That means physical sunscreens can be more obvious on the skin, which can reduce their cosmetic appeal.
Nanoparticulate forms of physical sunscreens (with tiny particles smaller than 100 nanometers) can improve the cosmetic appearance of creams on the skin and UV protection, because the particles in this size range absorb more radiation than they reflect. These are sometimes labelled as “invisible” zinc or mineral formulations and are considered safe.
So how do chemical sunscreens work?
Chemical UV filters work by absorbing high-energy UV rays. This leads to the filter molecules interacting with sunlight and changing chemically.
When molecules return to their ground (or lower energy) state, they release energy as heat, distributed all over the skin. This may lead to uncomfortable reactions for people with skin sensitivity.
Generally, UV filters are meant to stay on the epidermis (the first skin layer) surface to protect it from UV radiation. When they enter into the dermis (the connective tissue layer) and bloodstream, this can lead to skin sensitivity and increase the risk of toxicity. The safety profile of chemical UV filters may depend on whether their small molecular size allows them to penetrate the skin.
Chemical sunscreens, compared to physical ones, cause more adverse reactions in the skin because of chemical changes in their molecules. In addition, some chemical filters, such as dibenzoylmethane tend to break down after UV exposure. These degraded products can no longer protect the skin against UV and, if they penetrate the skin, can cause cell damage.
Due to their stability – that is, how well they retain product integrity and effectiveness when exposed to sunlight – physical sunscreens may be more suitable for children and people with skin allergies.
Although sunscreen filter ingredients can rarely cause true allergic dermatitis, patients with photodermatoses (where the skin reacts to light) and eczema have higher risk and should take care and seek advice.
What to look for
The best way to check if you’ll have a reaction to a physical or chemical sunscreen is to patch test it on a small area of skin.
And the best sunscreen to choose is one that provides broad-spectrum protection, is water and sweat-resistant, has a high sun protection factor (SPF), is easy to apply and has a low allergy risk.
Health authorities recommend sunscreen to prevent sun damage and cancer. Chemical sunscreens have the potential to penetrate the skin and may cause irritation for some people. Physical sunscreens are considered safe and effective and nanoparticulate formulations can increase their appeal and ease of use.
Yousuf Mohammed, Dermatology researcher, The University of Queensland and Khanh Phan, Postdoctoral research associate, Frazer Institute, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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This Chair Rocks: A Manifesto Against Ageism – by Ashton Applewhite
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It’s easy to think of ageism as being 80% “nobody will hire me because I am three years away from standard retirement age”, but it’s a lot more pervasive than that. And some of it, perhaps the most insidious, is the ageism that we can sometimes internalize without thinking it through.
10almonds readers love to avoid/reverse aging (and this reviewer is no different!), but it’s good once in a while to consider our priorities and motivations, for example:
- There is merit in being able to live without disability or discomfort
- There is harm in feeling a need to pass for younger than we are
And yet, even things such as disabilities are, Applewhite fairly argues, not to be feared. Absolutely avoided if reasonably possible of course, yes, but if they happen they happen and it’s good that we be able to make our peace with that, because most people have at least some kind of disability before the end, and can still strive to make the most of the precious gift that is life. The goal can and should be to play the hand we’re dealt and to live as well as we can—whatever that latter means for us personally.
Many people’s life satisfaction goes up in later years, and Applewhite hypothesizes that while some of that can be put down to circumstances (often no longer overwhelmed with work etc, often more financially stable), a lot is a matter of having come to terms with “losing” youth and no longer having that fear. Thus, a new, freer age of life begins.
The book does cover many other areas too, more than we can list here (but for example: ranging from pro/con brain differences to sex and intimacy), and the idea that long life is a team sport, and that we should not fall into the all-American trap of putting independence on a pedestal. Reports of how aging works with close-knit communities in the supercentenarian Blue Zones can be considered to quash this quite nicely, for instance.
The style is casual and entertaining, and yet peppered with scholarly citations, which stack up to 30 pages of references at the back.
Bottom line: getting older is a privilege that not everyone gets to have, so who are we to squander it? This book shares a vital sense of perspective, and is a call-to-arms for us all to do better, together.
Click here to check out This Chair Rocks, and indeed rock it!
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Starfruit vs Soursop – Which is Healthier?
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Our Verdict
When comparing starfruit to soursop, we picked the soursop.
Why?
First, by starfruit, we also mean carambola, which is a different name for the same fruit, and by soursop we also mean graviola/guyabano/guanábana, which are different namers for the same fruit. Now, as for their health qualities:
In terms of macros, the soursop has more carbs and fiber, the ratio of which also give it the lower glycemic index. So, a win for soursop here.
When it comes to vitamins, starfruit has more of vitamins A, B5, C, and E, while soursop has more of vitamins B1, B2, B3, B6, B7, B9, and K. Another win for soursop.
In the category of minerals, starfruit has slightly more copper, manganese, and zinc, while soursop has much more calcium, iron, magnesium, phosphorus, and potassium. One more win for soursop!
Adding up the sections makes for a clear and overwhelming win for soursop, but let’s address to quick safety considerations while we’re here:
- Soursop extract has been claimed to be an effective cancer treatment. It isn’t. There is no evidence for this at all; just one unscrupulous company that spread the claims.
- Soursop contains annonacin, a neurotoxin. That sounds scary, but much like with apple seeds and cyanide, the quantities you’d have to consume to suffer ill effects are absurd. Remember how capsaicin (as found in hot peppers) is also a neurotoxin, too and has many health benefits. Humans have a long and happy tradition of enjoying things that are toxic at high doses, but in small doses are neutral or even beneficial. Pretty much all things we can consume (including oxygen, and water) are toxic at sufficient doses.
In short, both of these fruits are fine and good, neither will treat cancer, but both will help to keep you in good health. As for nutritional density, the soursop wins in every category.
Want to learn more?
You might like to read:
Top 8 Fruits That Prevent & Kill Cancer ← soursop has no special cancer treatment properties, but actual evidence shows these fruits are beneficial (being good as a preventative, and also definitely a worthy adjunct to—but not a replacement for—mainstream anticancer therapies if you have cancer).
Take care!
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