A dry paper towel in the bag
Greens go slimy from their own condensation. A dry paper towel in the bag absorbs it — and the flattest-bag trick is not the freshness test people think.
Conversations about keeping produce alive longer, including people who handle it professionally correcting a popular tip. They disagreed sharply with each other about the mechanics, so only their common ground is here — and an outside check sided with the dissenters, which is why this page describes what inflation is not rather than what it is.
Leaves in a bag mostly do not spoil because time has passed. They spoil because they are sitting in water.
Put a dry sheet of kitchen paper in the bag. It absorbs the condensation that collects inside any sealed container in a fridge — from the leaves breathing, and from the temperature shifting every time the door opens — and that standing water is where the sliminess begins. This came up again and again, and it costs one sheet of paper.
The balance it strikes is the thing worth understanding, because it tells you when to bother. Greens want humid air and dry surfaces. Left alone in a bag they get the humidity and the wet surfaces both. The towel removes only the second half.
Change it when it goes damp. A soaked towel stops doing the job, so swap it.
The tip that is backwards
You may have been told to pick the flattest bag of salad, on the grounds that aging lettuce releases gas and inflates the packet. It is repeated often and it does not work, because inflation is not what it is taken to mean — and following it can land you on the worse bag.
How full a bag looks is a property of how it was packed and shipped — the atmosphere it was sealed with, how much air the machine left behind, how much that expanded on the way to the shop. It is not a measure of age. People who work with the stuff professionally corrected the tip several times over, and more than one said the reverse of it: new bags arrive plump, older ones go flat, and flatness can mean the seal has failed and ordinary air has got in.
They disagreed with each other about the mechanics, at times sharply, and this page does not adjudicate that. They agreed entirely about what to look at instead: condensation inside the bag, and the leaves themselves. Water beading on the plastic is the signal. The inflation is not.
The rest of the drawer
Herbs are not a bagged product and stop behaving like one the moment you treat them as cut flowers: trim the stems, stand them in a glass of water in the fridge, and they last far longer than they do sealed in plastic.
Carrots keep for over a month fully submerged in water in a closed jar. It reads like a trick and it is simply what stops them drying out.
And keep fruit away from leaves. Some fruits release ethylene as they ripen, and it accelerates the decline of whatever is stored beside them — which is why a bag of salad sitting next to a bowl of ripening fruit goes over faster than the same bag would elsewhere. Separating them is free and takes no effort at all.
Limp is not the same as gone, either. Greens that have merely gone floppy come back in a bowl of cold water. Slimy or smelling off is a different thing entirely, and no amount of soaking makes that edible.
Common questions
Why does a paper towel work?
Because the enemy is standing water, not air and not time. A sealed bag of leaves in a cold fridge accumulates condensation — the leaves respire, the temperature shifts each time the door opens, and moisture ends up as droplets on the plastic and the leaves. Wet leaf surfaces are where the sliminess starts. A dry paper towel takes that water out of circulation while leaving the humidity, which is the balance greens actually want: damp air, dry surfaces. This came up over and over, across unrelated conversations.
Isn't the flattest bag of salad the freshest?
No, and it is one of the more confidently repeated pieces of shop-floor lore. The reasoning goes that aging lettuce gives off gas and puffs the bag, so flat means new. But inflation is a property of how the bag was packed and shipped — the atmosphere it was sealed with, how much air the machine left in, how much the gas expanded in transit — rather than a measure of age. People who handle this product for a living corrected the tip repeatedly, and several said the reverse of it: new bags arrive plump and older ones go flat, and a flat bag can mean the seal has failed and ordinary air has got in. They disagreed with each other about the mechanics, sharply. What they agreed on is what to look at instead: condensation inside the bag, and the state of the leaves.
What about herbs, and everything else in the drawer?
Herbs do best treated like cut flowers — stems in a glass of water, in the fridge, rather than sealed dry in a bag, and they last dramatically longer that way. Carrots keep for over a month fully submerged in water in a closed jar, which sounds odd and works. And the drawer itself has a rule worth knowing: some fruits give off ethylene gas as they ripen, which speeds the decay of anything stored beside them. Keeping fruit and leafy greens apart is free and it is the reason a bag of salad next to a bowl of ripening fruit goes over faster than it should.
Full tip: https://findangel.org/tips/a-dry-paper-towel-in-the-bag · FindAngel.org — free, always.