Eventually I found out that I could make them ripen faster
and sweeter by putting a plastic produce bag over them as they sat on the
counter. Unfortunately, there were three problems with this technique.
- Uneven Ripening. The top of the
pineapple would be ready faster than the bottom. If I left the bag on longer to
let the bottom ripen all the way, the top became over-ripe and began
fermenting.
- Inconsistent Results. Sometimes
the pineapples became sweet but other times, they were still quite sour despite
taking on a nice golden color. Also, even the sweet ones would make my tongue
feel prickly, as though I was eating an unripe pineapple.
- Mold! This happened all over the surfaces that were covered by the bag and also where the pineapple sat on the counter. I was able to prevent mold on the bottom by placing a folded paper towel between the fruit and the counter but mold still persisted elsewhere.
One day, I was taking bananas out of the bag they came in and saw it was just the right size for the pineapple I had also bought. So I put that bag over the pineapple and several days later, I had a beautifully ripened golden pineapple that was extremely sweet throughout. No mold had formed and the fruit didn’t make my tongue feel prickly either. It was the best fresh pineapple I have ever had from a grocery store! I’ve been using this method ever since and have had perfectly ripened pineapples each time, regardless of the stage of ripeness at the store.
So, what’s the trick to the banana bag? I think it’s the holes
that are punched throughout. A bag without holes doesn’t allow much air
movement. As a result, the gases released by the fruit (ripening-hormones
released by the fruit?) accumulate unevenly. Since the top of the bag is
completely enclosed, the concentration of these gases is probably higher there,
making that part of the fruit ripen faster. The bottom of the bag is open to
the air, enabling these gases to disperse a bit. As a result, the bottom ripens
more slowly. Also, since humidity doesn’t escape readily from a bag without
holes, the surface of the fruit becomes a prime environment for mold to form.
Putting holes throughout the bag alleviates both of these
issues by allowing humidity and gases to escape. This enables the ripening process
to occur more evenly while decreasing the probability of mold growing.
Is there anything special about the banana bag material
itself? I don’t think so as I’ve also tried cutting out 15-20 quarter-inch
sized holes in a regular produce bag and using it to ripen pineapples. That has
worked just as well too.
So, the next time you want to get a pineapple at the grocery
store, there’s no need to pass up on the delicious fruit if you can’t find one
that’s ready to eat. Just grab a clear grocery bag, cut some holes in it, and
put it over your pineapple for a few days. Watch it turn golden yellow and when
you can no longer resist the wonderful pineapple scent every time you walk by,
it’s ready for eating!