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136

See the improved answer here: What DOES Help? Which acid works best to keep avocados from browning? Answer: None (of the acids tested) It's not that acid doesn't do much to help. ALL OF THE ACIDS TESTED CAUSED AVOCADOS TO BECOME MORE BROWN AND TO BECOME BROWN FASTER THAN NO TREATMENT AT ALL I am not kidding. Method For acid, I used freshly squeezed ...


112

General comments on the shelf-, fridge-, and freezer-life of foods The shelf-life is the amount of time a food can be stored before it is considered unsuitable for use. It may be unsuitable due to quality degradation (no longer tasty) or food safety (risk of food poisoning). [1] As far as food safety goes, food stored frozen at 0°F (-18°C) or below is ...


65

This is a myth left over from the days of iceboxes. Go to any official food safety resource online (including USDA, FDA, etc.), and you will find they are all in agreement: it's perfectly safe to put hot food in your refrigerator. In fact, unless you are using some more direct cooling method (like putting your food in an ice bath), waiting to refrigerate ...


63

The cleaning is one thing (there are flasks without hidden crevices that can be easily cleaned), but there’s also another point to consider: A thermos flask that is doing its job will keep food warm, or rather, slow down the cooling process. Even if you fill it with fairly hot liquid, it will slowly cool. If you do that with a perishable food like milk, you ...


57

As a health inspector for over 20 years, I am astounded by the lack of awareness that food safety controls are based on science and not on individual inspectors' personal fears and bad moods. Botulism control is based on some of the following facts: botulinum spores are commonly found in soil and on vegetable surfaces, botulinum grows in low or no oxygen ...


51

TL; DR Vitamin C (ascorbic acid) works to slow, even halt the browning of avocados, even in the face of salt, vinegar (in salsa), and lime juice, all of which have been shown (or will be shown) to speed browning. At a concentration of 100mg per 50 grams of avocado, it is also virtually tasteless. You can buy pure ascorbic acid powder, which I did and then ...


34

Nice experiment. Oddly enough food scientists in Florida have looked into the same problem, and achieved results similar to yours: THE RETARDATION OF ENZYMATIC BROWNING IN AVOCADO PUREE AND GUACAMOLE Enzymatic browning in avocado puree and guacamole was evaluated by reflectance measurements for several varieties of avocado with varying amounts of ...


32

Ripening of the avocado is slowed down greatly by refrigeration, so it is usually a good idea to let the avocado ripen fully at room temperature. Once it is ripe, it can be stored in the refrigerator for at least a week. This way, it is ready to use whenever you want it. Fortunately, there is a day or two when the avocado is ripe, but not too ripe, so if you ...


27

Here is my camping strategy. If I'm going for more than a few days, here's what I do. Start with a good air tight cooler. (Big enough to hold everything perishable). Forget those "gel packs". Definitely don't get a bag of ice from the convenience store. They melt and mess stuff up. Get a 2 litre bottle, rinse it out, fill it with water and freeze it. (Do ...


26

Your concerns would be moisture, insects and/or rodents. Simply put your products in airtight containers. You'll be just fine. (By the way, my mom always stored onions and potatoes under the sink).


22

Mothball is a mild poison. msds Contamination via vapor to food may only be mildly toxic but not a good idea. You can keep food in unopened cans and air tight glass containers. Wipe them down with a mild detergent. Sealed plastic containers is questionable. Remove everything then wipe the cupboards and walls with a light detergent. Let them dry / air ...


21

Yes, of course you can keep flour in the freezer. For whole wheat flour, which is susceptible to rancidity due to the fat from the whole grain being included, it is even recommended. For white flour, according to the University of Nebraska Extension in Lancaster County (emphasis added): For longer storage, keep white flours in the refrigerator in an ...


19

I think you've got this mostly backwards. The reason not to store bananas with other fruit is that the ripening bananas emit a lot of ethylene gas and will cause the other fruit to spoil more quickly. You can also use this to your advantage: got a pear that you want to ripen quicker? Put it in a paper bag with ripe bananas overnight. Other fruit emits ...


19

If you are only using it three times a month then this 25lbs bag may last a very long time indeed. The problem is that even white rice can eventually develop off flavors when exposed to light and air. Additionally- even if pests don't have access to the rice, it is not unlikely that the rice has some eggs on it that can hatch and spoil the whole bag. The ...


16

Some quick research indicates there are enzymes in freshly-squeezed juice that will degrade it fairly rapidly, and that they can be deactivated by heat. Of course, that also changes the flavor (especially since you're not going to be able to quickly heat and cool it, as it apparently only takes 30 seconds, but any method doable in a home kitchen will keep it ...


16

If you can, put all grains you buy in impenetrable containers as soon as you get them home, and freeze them. Keeping rice (or any other grain) in the freezer for a full day will help. Keeping the grain in the freezer for a week will kill just about any creepy crawly that's already in the rice, the impenetrable container will keep new visitors out. Glass or ...


16

When you cut any food you expose the cut surface to oxygen, which causes chemical changes due to oxidation. You also expose the cut surface to microbes and organisms which break down food. Both of these will impact the quality of cut meat or fish, so yes a filet cut from a whole fish just before cooking would be fresher and better quality than one cut some ...


16

It depends on the design. Some can't be washed properly, and milky liquids are much harder to clean off by rinsing than water or most water-based drinks My genuine Thermos brand flask wouldn't be a problem because all the surfaces that come into contact with the food are accessible. My previous small cheap flask had a pouring system in the lid that meant ...


15

Store them in the bag in your fridge. Also, if you take the greens off they will last longer. I keep mine in the drawer at the bottom.


15

One thing to add to the answers above - as bananas ripen, the starch in the flesh is converted into sugar. This continues until the starch that was providing the firmness and structure for the banana has, for the most part, been converted to sugar, which is also partly why the insides continue to get mushier as the banana ripens. So more time converting ...


15

Honey should be stored at 50-70 Degrees Fahrenheit Honey is similar in to olive oil and should be storaged between 50-70 Degrees Fahrenheit according to Max Shrem from Slashfood: Similar to olive oil, honey should be stored at a cool temperature between 50 and 70 degrees Fahrenheit. So, it's best to store it away from your oven or stove. Also, it ...


15

Cut it in half before peeling, so that only the end is exposed. Wrap the exposed end with plastic wrap, and place in the refrigerator. The skin may darken, but that is okay. You should get a day or two easily. Or put all the half bananas in the freezer, and when you have enough, make banana muffins.


15

Most freezers are frost-free, which means that they occasionally cycle above freezing to prevent formation of frost on the walls of the freezer. This makes them easier to maintain but it shortens the storage longevity of the food. This makes products stored in them vulnerable to freezer burn, which is a loss of moisture. It can also cause ice and IQF ...


15

The main enemy of oil is oxidation, which is the reaction of the constituent molecules with oxygen. How fast oxidation occurs will depend on the type of oil you consider. For example, unsaturated fat oxidizes faster than saturated. Therefore oils with higher content of unsaturated fat tend to oxide faster. Since oxidation is a reaction, it changes the ...


14

Depending on the temperature in your fridge, cooked lentils will be safe to eat for 2 to 5 days when using a sealed container, filled with the cooking water. By immersing them, your lentils won't dry out and they'll be ready to use whenever you need them - just drain the amount you need. If you've got sufficient freezer space you could also freeze the ...


14

Here in China, I have a special rice box. It's basically a plastic box with a lid. The lid is not completely air tight but is a neat fit. This allows the rice to remain dry without any pests getting inside. You can also get special electronic dispensers that will store the rice and measure out portions for you. The one pictured below stores 25kg of rice. ...


14

I roast them "fresh" as I need them, but my method scales up easily. I use a gas grill and turn it to high. Set the whole peppers on the grill, and turn them when the skin is black on the hot side. When they're black all over (after maybe 2-3 minutes per side for all 4 sides of the typical ones in my local supermarket), I put them into a large ...


14

The reason flour is in paper bag (either 1kg/2lbs bags from supermarkets, or 25kg for bakeries) is to let it "breath": to get it oxidized. If you see an old (vintage) bag it's made of a net that lets a lot of air to get in. Today those bags are not used because it also allows bugs to get in. When wheat grains are just milled, the flour is not good enough: ...


14

I agree that fermentation from bacteria is the most likely explanation. So, to tackle your questions point by point: It is unsafe, as the other posts already mentioned, due to botulism danger. Plant matter without access to oxygen is not shelf stable, unless it has been pickled with sufficient acid. There will be some chemistry going on between garlic and ...


14

This should be fine if there is no other food below the chicken wings. What you don't want is for the chicken to be in a position to contaminate other foods. General food service guide lines include: From "Preventing Cross-Contamination During Storage Fact Sheet" (appears to originally be from the National Restaurant Educational Foundation, hosted here by ...


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