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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Blueberry & Banana Collagen Baked Oats
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Good news for vegans/vegetarians! While we include an optional tablespoon of collagen powder in this recipe, the whole recipe is already geared around collagen synthesis, so it’s very collagen-boosting even with just the plants, providing collagen’s building blocks of protein, zinc, and vitamins C and D (your miraculous body will use these to assemble the collagen inside you).
You will need
- 2 cups oats, whence the protein and zinc
- 1 cup milk (your preference what kind; we recommend almond for flavor; whether you choose plant or animal though, it should be fortified with vitamin D)
- 2 bananas, peeled and mashed
- 4 oz blueberries, whence the vitamin C (frozen is fine) (chopped dried apricots are also a fine substitute if that’s more convenient)
- 1 oz flaked almonds, whence the protein and zinc
- 1 tbsp pumpkin seeds, whence the protein and zinc
- 1 tbsp flax seeds, whence the protein and zinc
- Optional: 1 tbsp maple syrup
- Optional: 1 tbsp collagen powder, dissolved in 1 oz hot water
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 350℉ / 180℃.
2) Mix the oats with 2 cups boiling water; allow to stand for 10–15 minutes, and then drain any excess water.
3) Mix the mashed bananas with the remaining ingredients except the milk and blueberries, stirring thoroughly.
4) Add the softened oats, and stir those in thoroughly too.
5) Add the milk and blueberries, in that order, stirring gently if using fresh blueberries, lest they get crushed.
6) Pour the mixture into an 8″ square cake tin that you have lined with baking paper, and smooth the top.
7) Bake for about 40 minutes or until firm and golden brown. Allow to cool; it will firm up more while it does.
8) Cut into squares or bars, and serve or store for later.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
We Are Such Stuff As Fish Are Made Of ← our main feature about collagen
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Does Your Butt…Wink?
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What is a Butt Wink?
A “butt wink” is a common issue that occurs during squatting exercises.
Now, we’ve talked about the benefits of squatting countless times (see here or here for just a few examples). As with all exercises, using the correct technique is imperative, helping to both reduce injury and maximize gain.
Given butt winks are a common issue when squatting, we thought it natural to devote an article to it.
So, a butt wink happens when, at the bottom of your squat position, your pelvis tucks rotates backward (otherwise known as a “posterior pelvic tilt”) and the lower back rounds. This motion looks like a slight ‘wink’, hence the name.
How to Avoid Butt Winking
When the pelvis tucks under and the spine rounds, it can put undue pressure on the lumbar discs. This is especially risky when squatting with weights, as it can exacerbate the stress on the spine.
To avoid a butt wink, it’s important to maintain a neutral spine throughout the squat and to work on flexibility and strength in the hips, glutes, and hamstrings. Adjusting the stance width or foot angle during squats can also help in maintaining proper form.
A visual representation would likely work better than our attempt at describing what to do, so without further ado, here’s today’s video:
How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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What We Don’t Talk About When We Talk About Fat – by Aubrey Gordon
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There are books aplenty to encourage and help you to lose weight. This isn’t one of those.
There are also books aplenty to encourage and help you to accept yourself and your body at the weight you are, and forge self-esteem. This isn’t one of those, either—in fact, it starts by assuming you already have that.
There are fair arguments for body neutrality, and fat acceptance. Very worthy also is the constant fight for bodily sovereignty.
These are worthy causes, but they’re for the most-part not what our author concerns herself with here. Instead, she cares for a different and very practical goal: fat justice.
In a world where you may be turned away from medical treatment if you are over a certain size, told to lose half your bodyweight before you can have something you need, she demands better. The battle extends further than healthcare though, and indeed to all areas of life.
Ultimately, she argues, any society that will disregard the needs of the few because they’re a marginal demographic, is a society that will absolutely fail you if you ever differ from the norm in some way.
All in all, an important (and for many, perhaps eye-opening) book to read if you are fat, care about fat people, are a person of any size, or care about people in general.
Pick Up Your Copy of “What We Don’t Talk About When We Talk About Fat”, on Amazon Today!
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Hardwiring Happiness – by Dr. Rick Hanson
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Publishers are very excitable about “the new science of…”, and it’s almost never actually a new science of. But what about in this case?
No, it isn’t. It’s the very well established science of! And that’s a good thing, because it means this book is able to draw on quite a lot of research and established understanding of how neuroplasticity works, to leverage that and provide useful guidance.
A particular strength of this book is that while it polarizes the idea that some people have “happy amygdalae” and some people have “sad amygdalae”, it acknowledges that it’s not just a fated disposition and is rather the result of the lives people have led… And then provides advice on upgrading from sad to happy, based on the assumption that the reader is quite possibly coming from a non-ideal starting point.
The bookdoes an excellent job of straddling neuroscience and psychology, which sounds like not much of a straddle (the two are surely very connected, after all, right?) but this does mean that we’re hearing about the chemical structure of DNA inside the nuclei of the neurons of the insula, not long after reading an extended gardening metaphor about growth, choices, and vulnerabilities.
Bottom line: if you’d like a guide to changing your brain for the better (happier) that’s not just “ask yourself: what if it goes well?” and similar CBTisms, then this is a fine book for you.
Click here to check out Hardwiring Happiness, and indeed hardwire happiness!
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How does cancer spread to other parts of the body?
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All cancers begin in a single organ or tissue, such as the lungs or skin. When these cancers are confined in their original organ or tissue, they are generally more treatable.
But a cancer that spreads is much more dangerous, as the organs it spreads to may be vital organs. A skin cancer, for example, might spread to the brain.
This new growth makes the cancer much more challenging to treat, as it can be difficult to find all the new tumours. If a cancer can invade different organs or tissues, it can quickly become lethal.
When cancer spreads in this way, it’s called metastasis. Metastasis is responsible for the majority (67%) of cancer deaths.
Cells are supposed to stick to surrounding tissue
Our bodies are made up of trillions of tiny cells. To keep us healthy, our bodies are constantly replacing old or damaged cells.
Each cell has a specific job and a set of instructions (DNA) that tells it what to do. However, sometimes DNA can get damaged.
This damage might change the instructions. A cell might now multiply uncontrollably, or lose a property known as adherence. This refers to how sticky a cell is, and how well it can cling to other surrounding cells and stay where it’s supposed to be.
If a cancer cell loses its adherence, it can break off from the original tumour and travel through the bloodstream or lymphatic system to almost anywhere. This is how metastasis happens.
Many of these travelling cancer cells will die, but some will settle in a new location and begin to form new cancers.
Some cells settle in a new location.
Scipro/ShutterstockParticular cancers are more likely to metastasise to particular organs that help support their growth. Breast cancers commonly metastasise to the bones, liver, and lungs, while skin cancers like melanomas are more likely to end up in the brain and heart.
Unlike cancers which form in solid organs or tissues, blood cancers like leukaemia already move freely through the bloodstream, but can escape to settle in other organs like the liver or brain.
When do cancers metastasise?
The longer a cancer grows, the more likely it is to metastasise. If not caught early, a patient’s cancer may have metastasised even before it’s initially diagnosed.
Metastasis can also occur after cancer treatment. This happens when cancer cells are dormant during treatment – drugs may not “see” those cells. These invisible cells can remain hidden in the body, only to wake up and begin growing into a new cancer months or even years later.
For patients who already have cancer metastases at diagnosis, identifying the location of the original tumour – called the “primary site” – is important. A cancer that began in the breast but has spread to the liver will probably still behave like a breast cancer, and so will respond best to an anti-breast cancer therapy, and not anti-liver cancer therapy.
As metastases can sometimes grow faster than the original tumour, it’s not always easy to tell which tumour came first. These cancers are called “cancers of unknown primary” and are the 11th most commonly diagnosed cancers in Australia.
One way to improve the treatment of metastatic cancer is to improve our ways of detecting and identifying cancers, to ensure patients receive the most effective drugs for their cancer type.
What increases the chances of metastasis and how can it be prevented?
If left untreated, most cancers will eventually acquire the ability to metastasise.
While there are currently no interventions that specifically prevent metastasis, cancer patients who have their tumours surgically removed may also be given chemotherapy (or other drugs) to try and weed out any hidden cancer cells still floating around.
The best way to prevent metastasis is to diagnose and treat cancers early. Cancer screening initiatives such as Australia’s cervical, bowel, and breast cancer screening programs are excellent ways to detect cancers early and reduce the chances of metastasis.
The best way to prevent cancer spreading is to diagnose and treat them early.
Peakstock/ShutterstockNew screening programs to detect cancers early are being researched for many types of cancer. Some of these are simple: CT scans of the body to look for any potential tumours, such as in England’s new lung cancer screening program.
Using artificial intelligence (AI) to help examine patient scans is also possible, which might identify new patterns that suggest a cancer is present, and improve cancer detection from these programs.
More advanced screening methods are also in development. The United States government’s Cancer Moonshot program is currently funding research into blood tests that could detect many types of cancer at early stages.
One day there might even be a RAT-type test for cancer, like there is for COVID.
Will we be able to prevent metastasis in the future?
Understanding how metastasis occurs allows us to figure out new ways to prevent it. One idea is to target dormant cancer cells and prevent them from waking up.
Directly preventing metastasis with drugs is not yet possible. But there is hope that as research efforts continue to improve cancer therapies, they will also be more effective at treating metastatic cancers.
For now, early detection is the best way to ensure a patient can beat their cancer.
Sarah Diepstraten, Senior Research Officer, Blood Cells and Blood Cancer Division, Walter and Eliza Hall Institute and John (Eddie) La Marca, Senior Resarch Officer, Walter and Eliza Hall Institute
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Tahini vs Hummus – Which is Healthier?
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Our Verdict
When comparing tahini to hummus, we picked the tahini.
Why?
Both are great! But tahini is so nutritionally dense, that it makes even the wonder food that is hummus look bad next to it.
In terms of macros, tahini is higher in everything except water. So, higher in protein, carbs, fats, and fiber. In terms of those fats, the fat breakdown is similar for both, being mostly polyunsaturated and monounsaturated, with a small percentage of saturated. Tahini has the lower glycemic index, but both are so low that it makes no practical difference.
In terms of vitamins, tahini has more of vitamins A, B1, B2, B3, B5, B9, E, and choline, while hummus is higher in vitamin B6.
This is a good reason to embellish hummus with some red pepper (vitamin A), a dash of lemon (vitamin C), etc, but we’re judging these foods in their most simple states, for fairness.
When it comes to minerals, tahini has more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. Meanwhile, hummus is higher in sodium.
Note: hummus is a good source of all those minerals too! Tahini just has more.
In short… Enjoy both, but tahini is the more nutritionally dense by far. On the other hand, if for whatever reason you’re looking for something lower in carbs, fats, and calories, then hummus is where it’s at.
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You might like to read:
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