Guest guest Posted February 10, 2012 Report Share Posted February 10, 2012 Plastic bags are fine. Paper bags don’t give off Ethylene Gas (EG). They are simply a way to keep the gas in a confined space. What’s important are three things: dark, warm, moist.  DARK  forces the Chlorophyll to turn from green to yellow in bananas and to red in tomatoes. During this long process EG (Ethylene Gas) is produced. It comes out of the ‘pores’ in the skin of apples, tomatoes, bananas and various other fruits.  WARM  speeds up the bio-chemical reaction process. So – to a point – the warmer it is, the faster things will ‘ripen’. If by ripen you mean ‘soft’. Cooking will also soften things up, but so fast that an entirely separate type of process takes over. Warm is from the mid- 60*F to the mid-to-high 70*F (18*C – 25*C). Remember that each fruit or veggie comes from a specific environmental climate – so ‘warm’ to us is ‘room temp’ to others. And hot to us is warm to others.  HUMIDITY  keeps a fruit moist. If you keep fruit in a dry environment you’ll notice that it dries out. If you keep it in a moist environment you’ll notice that it stays moist and will start to mold. You have probably noticed that moist warm air seems hotter than dry warm air – so a humid 95*F (35*C) day at 95% humidity can be stifling in New York or Baltimore, but 95*F in the middle of Nevada at 5% humidity is on the high side of warm.  The CONCEPT is to put the fruit into an environment which will speed up the ripening process and not compromise the taste or texture of the fruit. When many fruits begin to ripen they put out EG and this hormone triggers the same hormone reaction in other fruits. Thus an orchard, or a tomato plant will start with one fruit beginning to ripen, then more and more until the orchard or plant just seems to explode into ripe fruit. That is how potent a hormone EG is.  So if you confine an unripe fruit with a ripe fruit, the EG will trigger the mechanism in the unripe fruit to start producing EG and it will ripen faster, that first fruit is just the ‘trigger’ mechanism. The more EG there is the faster the unripe fruit will ripen.  If you can confine the EG being produced, the higher the concentration, and the faster the other fruit will produce it’s own EG – increasing the concentration of EG in a ‘do-loop’ – or and out of control spiraling effect. So by confining the EG you start an exponential reaction in the unripe fruit. But you need to trigger that, and you do it by putting in something you KNOW is producing the key that opens the door to the production of more EG – an apple.  Or a ripe tomato. Apples are better because they last FAR longer and don’t decompose as rapidly.  DARK adds to this process. With no light the chlorophyll starts to change color. To yellow in bananas and to red in tomatoes. So not only are you introducing a hormone that flips the switch to ripen the fruit, you are adding to the process by speeding it up by lack of light and the fruit turns the starch into sugar to get the energy to power this process.  HUMIDITY keeps the air warmer (water holds more heat than air, thus you put ‘water jackets’ around plants early on in the early spring to keep them from freeze back while they are still tender seedlings) longer (air dissipates heat faster than water, that is one reason hot and muggy in New York or Washington DC is very comfortable in Nevada).  So the real idea is to get as much EG in as small a space as you can – you want a HIGH CONCENTRATION of EG. You want to add to this process by getting the chlorophyll to turn color and release more EG. And you want to speed THAT process up by keeping it warm and moist – conditions that life just LOVES!   So you put a LOT of apples in with your bananas, keep the volume of the space as small as you can so the concentration of the hormone EG rises rapidly, keep it dark and warm and moist. Plastic is a far better choice than a paper bag. It is not as porous so the gas stays inside, it can be flatted out and sealed better than a paper bag. And with a damp crumpled paper napkin or towel inside you keep the humidity up. You can then place the plastic bag in a warm dark spot, or put it in anything that will keep the light out and set it somewhere where it is warm. Since heat rises, you can put it on a top shelf, or near a space heater or in a warm closet, or on top of your hot water heater.  In a clear plastic bag you can SEE when the bananas begin to ripen—turn their starches into sugars.  Here’s a guesstimate of the starch-sugar percentage for bananas:  Green – 80% starch, 7% sugar Yellow – 25% starch,  65% sugar Spotted – 5% starch, 90% sugar  HOWEVER THERE IS ANOTHER PROBLEM!!!!!  Apples out-gas the hormone EG through “pores’ in the skin. Nearly all apples are now waxed with a vegetable based wax. This makes them nice and shiny and pretty to look at. It makes the skin nice and smooth. Even ‘organic’ apples have this wax because it is made from veggies. The wax does more than make the apples LOOK nice, it allows apples to be stored in large warehouses without them all ripening at the same time and going ‘soft’ on you. So there’s a good commercial reason to wax apples. IT KEEPS EG FROM LEAKING OUT!  So you have to wash you apples to get the wax off. It’s not a difficult wax to get off, but it has to come off none-the-less. So get some nice hot-side-of-warm water in a dish pan and put in about 2 DROPS of dish DETERGENT (dish soap takes more) per gallon – so a 3 gallon dish pan will take about 10 drops of detergent. We often use FAR more than what we need when we wash dishes. You can use more if you want, but after a certain amount the water doesn’t get any wetter. (Meaning the surface tension of the water stabilizes and doesn’t change no matter how much more detergent you put in). Let the apples sit in there and swish them around a couple of times to get the wax warmed up and starting to lift off the apple and into the water, then use a nylon veggie brush or nylon ball and GENTLY scrub the apple to get the wax off and open up the ‘pores’. Rinse the apples well. REALLY well. Handle them gently – but do get the soap out of the dimples and pores where the wax was. Towel dry them well – this picks up the rest of the wax and soap and water that's down in the pours. You can do this twice if you want, but once is generally enough.  NOW when you put those apples in with the bananas and seal up the plastic bag, they WILL work a LOT better. Not all apples are created equal. Some ‘ripen’ slowly – your ‘Delicious’ varieties ripen FAR faster than say a Granny or a Pippin. As a general rule, the softer the apple, the faster it’s release of EG, and the more firm or tart an apple the slower it releases the EG. Another way to look at it is the shorter the 'keep' time is for an apple, the more EG it puts out. So your long keepers, generally the 'tart-side-of-sweet' apples - like Fuji, keep longer. Long keepers do a slow steady out-gassing, while your short and medium keepers put out more hormone-- and red puts out more than green, soft puts our more than crisp.  So, there’s how it happens. The apples can touch the Bananas - remember it’s the CONCENTRATION of the hormone that you want to be high so more apples than Bananas is OK. If you put them in large (1 gallon+) freezer bags squeeze out the air after you put in the damp paper towel or napkin. ( it doesn’t have to be paper, a clean cotton rag will work just as well) Put it in something that keeps the light out – the more light you keep out, the faster they will ripen. Put them in a warm place – the longer they are warm the quicker they will ripen – so a nice constant temp is better than a hot-cold cycle.And if you can't put them in a sealable plastic bag, you can tightly wrap the paper bag with a black plastic garbage or trash bag to keep the light out and the gas in.  Give it about 3-4 days and have a look. Remember that even flashes of light can stop a process – Ever notice how a nice bare clean soil will sprout ‘weeds’ after you till or roto-till a field or row? That’s because some species of seed need just a flash of light – some only milliseconds (literally) – to ‘turn on’ the sprouting process. So seeds can lay buried in the ground for YEARS and when you till them up, just a quick flash of light will start the germination process. So the less you look at them in a bright light, the faster they will turn ‘ripe’.  As technology changes we often misunderstand why we do things. Before paper bags there were newspapers to wrap the fruit in. It had nothing to do with the paper, it had to do with the light and concentrating the EG around the fruit. The paper bag allowed an apple or other fruit to be added to collect the EG from that ripe fruit and switch on the chemical process that forces the unripe fruit to ripen faster. There’s nothing magic about the paper bag—in fact some plastic bags are made from polyethylene which breaks down and would actually add a tiny bit of EG to the process --.  So, don’t focus on the paper, focus on the process. It’s hard because starting with the Nixon-Regan era, the push for the ‘back to basics’ process overpowered the broad base of knowledge students were exposed to -- entire generations of students never learned this stuff – The Golden Age of Science Education was in the 1960’s with a brief peak during – but ‘basic education’ (the 3-R’s)  is cheaper than teaching Science, Geography, Cultural Anthropology, History, Health, or Music. OK, off my soap box, Hope this works for you.  Dream Well. Travel Well.  May you Walk Your Path in Beauty. " Somewhere, something incredible is waiting to be known. " Carl Sagan. >________________________________ > ><snip> > > >Hi. > >Okay, did the cardboard box thing. Made a video. > >Will give it a few days. Thanks much <snip> > > Quote Link to comment Share on other sites More sharing options...
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