Making your own vinegar (without a mother)

One of the jobs in the kitchen recently was to replenish my stock of apple (scrap) cider vinegar. I stumbled across the concept of fruit scrap vinegar while reading Sandor Katz's Wild Fermentation and The Art of Fermentation many moons ago. I liked the idea of turning food scraps into something useful and also adding another made from scratch item to the pantry. It was a little while however until I took action and attempted my own (as you know, I don't like to jump into things too quickly!).

My first attempt was using some quince scraps from the garden after making a batch of quince paste. Unfortunately it was not the success I had planned. Bits of the fruit bobbed to the top and I started colonising a whole colourful community of mould. Off to the compost pile...

I love the 'star' when you cut apples this way.

I really wanted to give apple scrap vinegar a go so I saved peels, cores and discarded bits and pieces  in a bag in the freezer until I had enough to attempt take two. Learning from my mistakes I ensured the fruit stayed submerged using a piece of plastic lid cut to size for my jar. Success this time, and it's been a regular on the made from scratch list ever since.

The process itself takes a few weeks but requires very minimal effort. Basically you dissolve a little sugar in some boiling water, then top up with room temp water and pop in your fruit scraps. Add something to the top to ensure it all stays submerged and cover with some muslin, a clean chux or a tea towel to keep bits out and allow gas to escape. Then leave it for the microbes to do their thing.

I generally use a ratio of 1-2 Tablespoons of sugar, about a kilogram of apple scraps and enough water to cover. The more apple scraps you use the stronger the apple flavour, but you can use less and either make a smaller batch or have a more subtle apple flavour. If the water where you live is heavily chlorinated you can pour some into a jug and sit out on the bench overnight before you make your batch. I don't find I need to do this where I live. If you have rain water to use, all the better.

Apple scraps from the freezer - not the most photogenic things!

For the first week it's a good idea to have a little look each day and give your mix a stir. This adds extra air, helps the microbes start doing their thing and reduces the chance of surface mold forming before the 'good' bugs have taken a hold. Once the ferment stops actively bubbling - usually close to two weeks around here but it will depend on temperature etc - you can strain out the apple bits with a fine sieve or muslin (or clean chux) lined colander. Pop your vinegar into bottles or whatever you plan to store in and leave for another week or two with the lids off, but covered loosely.

You can taste test along different steps of the process to get an idea of how things are changing. The acidity and flavour will continue to change over time.

I'd recommend checking out Sandor Katz's books if you are interested in learning more about fermentation and how to do it. He is definitely the go-to guy in all things fermenting. There is also a great how to on the Down to Earth blog for making your own scrap vinegar if you need to do a little further research before diving in.

I've made a few batches of the apple cider vinegar successfully since my first attempt and also given the recipe a go with pineapple scraps and mango skins. Both worked well and created a fruity vinegar great for adding a tang to salads and dressings. You can also use fruit scrap vinegars in any home-made cleaners or hair products.

Mango vinegar - you can see a 'mother' forming in the corner.

It's not advisable to use home-made vinegar for preserving that you are not going to keep refrigerated as you do need a minimum acidity in shelf stable preserves to ensure they keep the nasty bugs at bay. But otherwise fruit scrap vinegar can be substituted with the bought stuff wherever you like.

Fruit scrap vinegar is a great way to reuse kitchen waste and a ridiculously frugal ways to stock the pantry with flavoured vinegars of all kinds. So, what are you waiting for?

Have you ever tried making vinegar at home?
Any other ways that you use up your fruit scraps?