Farm to Table Banana Vinegar
By Marco, Apprentice 2020
Permaculture Vinegar?
I know, it sounds like a weird flavor combo. Sour banana? Whaaat? But it works and it’s tasty. This recipe is a very accessible way of doing farm to table whilst utilizing and transforming “waste” into something productive and delicious – permaculture 101.
What makes a Vinegar
Firstly, let’s take a quick look at what vinegar is. The word vinegar comes from the Latin vinum acer – literally “sour wine”. Alcohol is fermented by a large family of bacteria called Acetic Acid Bacteria (AAB), who turn ethanol into acetic acid. These little guys are everywhere - airborne and on the surface of most living things including me, you and, as it turns out, bananas! AAB are aerobic, which means they need air (oxygen) to do their thing, unlike Lactic Acid Bacteria for example (the main players in lactic acid ferments, such as kimchi and sauerkraut) which are anaerobic.
Check out our last blog on home-brewing your own alcohol.
Farm to Table Vinegar
So, here is a breakdown of how we make our farm to table banana vinegar here:
Go out and harvest them bananas, or maybe you already did that and you have far too many ripening… so next
With our main and only ingredient: bananas we don’t even need to peel them. You can just smoosh ‘em all up, skin n all, and chuck ‘em into a bucket. Beautiful. This process works best when they’re very ripe. We’re talking leaky, mushy and black. The ones nobody wants to eat, which sit around in the fruit bowl way too long, eventually they get picked up by the loser of rock, paper scissors and thrown out with an overly extended arm and a wincing face… Yeah. These are the ones that make great vinegar. Waste? Nay, but a resource in the wrong place. It’s farm to table, not farm to trash.
After you’ve smushed them all up and put them into a large container (we use a 5 gallon bucket, but you could use any large enough container), all you need to do is leave it and wait for the acetic acid bacteria to get to work on turning the alcohol into acetic acid. The time this takes varies depending on your conditions and the state of your bananas, but somewhere between 1-3 months. Remember that AAB like oxygen, so keeping a breathable lid on top of your vinegar, such as a muslin, will help speed up the process. o You could also attach an air pump and air stone (such as one that you’d use in an aquarium) to pump and diffuse air into your vinegar. This should significantly decrease fermentation time.
[TIP: you can hammer a nail into the bucket near the bottom. Leave the nail in until you’ve finished fermenting. Once your vinegar is ready, you can remove the nail and all the liquid in the bottom of the bucket will drain out.]
Upon opening your banana vinegar for the first time, you’re gonna get a bit of a shock as you see what appears to be a sprawling metropolis of mold growing all over your black bananas. Do not despair. Despite everything you were taught about rotting fruit, this is not a bad thing. Generally speaking, bright colored molds (pinks, yellow, greens etc.) are the ones to be wary of. Get another container and a sieve and pour whatever liquid you have into this second container through the sieve.
Next, take those moldy bananas into your hands and squish with all your might. Get in there! Don’t be afraid! Squish harder, dammit! Get all those lovely juices out and dispose of the solids.
Finished squishing? Good. It’s time for your first taste test. If the vinegar tastes too sweet and not sour enough, it probably needs more time. If this is the case, you can add a little sugar – this is to allow the yeast present to convert more ethanol for our AAB friends to metabolise into more acetic acid. Another option is adding a little vinegar from a previous batch (this is called backslopping in fermentation lingo). If you don’t have a previous batch, you can use a shop-bought vinegar - white vinegar is a good bet as it has a neutral taste that won’t mess with the bananary-ness. Check back every week or so until your vinegar has reached the desired level of acidity. And there you have it! Easy-peasy farm to table banana vinegar using permaculture principles – there is no such thing as waste.
You can now bottle your vinegar and age them. This step is optional and will enhance the flavour profile of the vinegar. We use glass bottles that we recycle from the farm. It is important to use a sealed bottle and fill it as much as possible. If the AAB are exposed to oxygen they could begin to break down your acetic acid into carbon dioxide and water.
It’s that simple folks! This is a great way to use up all those old bananas.
Enjoy your farm fresh, homemade vinegar! This can be done with a variety of fruits that you have in excess off the farm!
Stay tuned for more farm fresh recipes.