Preserving Gluts with Traditional Pickling Methods

Why a Glut Deserves a Jar

There is a fortnight in late summer when the Peak District suddenly turns generous. The courgettes double overnight, the runner beans outpace the freezer, and the beetroot you sowed in May all seems to reach pulling size on the same damp Tuesday. On a hillside smallholding or a village allotment, that abundance is a gift and an inconvenience in equal measure. Pickling is the old answer to it. A few litres of sound vinegar, a bag of salt and a shelf of clean jars will turn a barrowload of surplus into stores that carry you through to March. It is one of the most forgiving country skills there is, provided you respect three things: the vinegar, the brine and the jar.

Choose Your Vinegar Properly

Vinegar is the preservative, not a flavouring you can swap at will. For safe pickling you need an acetic acid strength of at least 5 per cent, and most supermarket pickling vinegars sit comfortably at that level or slightly above. Anything sold as non-brewed condiment is diluted acetic acid and gives a harsh, flat result; leave it on the shelf.

• Malt vinegar — the traditional British choice. Dark, robust and cheap. Best for onions, shallots, walnuts and chutneys.
• Distilled or white vinegar — clean and neutral, so it lets the vegetable speak. Good for beetroot and cauliflower.
• Cider vinegar — softer and fruitier, lovely with courgettes and runner beans, but check the label for the 5 per cent figure.
• White wine vinegar — the finest flavour, and the most expensive. Reserve it for small, special jars.

If you are pickling a delicate vegetable and want a gentler taste, you may dilute the vinegar with water — but only if you also raise the acidity elsewhere, or keep the jars in the fridge and eat them within a month. For shelf-stable pickles, use the vinegar neat.

Brine Strength and Dry Salting

Salt does two jobs: it draws water out of the vegetable so the vinegar can penetrate, and it keeps the texture crisp rather than sloppy. Get the strength roughly right and the rest follows.

A brine is measured by weight, not by guesswork. A 10 per cent brine is 100g of salt dissolved in 1 litre of water — use this for cucumbers, gherkins and courgettes, soaking them for 8 to 24 hours. A 20 per cent brine, so 200g to the litre, is for onions and shallots, which need the water pulled out hard before they meet the vinegar. Always use non-iodised salt; table salt with anti-caking agents can cloud the liquor.

Dry salting suits shredded cabbage, sliced marrow and beetroot. Layer the prepared vegetable with 25g of salt per kilo, leave it in a colander over a bowl for several hours, then rinse and pat dry. You will be astonished how much liquid comes out. That liquid is exactly what would otherwise dilute your vinegar and spoil the keeping quality.

What to Pickle Through the Season

The Peak District's short growing season and late frosts shape what is worth preserving. Follow the calendar rather than a recipe book.

• June and July — nasturtium seed pods, picked young and pickled like capers; the first courgettes, sliced and done in cider vinegar with dill.
• August — runner beans, French beans and beetroot. Beetroot wants cooking first, then peeling and slicing into spiced vinegar.
• September — shallots from the allotment, pickling onions, red cabbage. This is the month for the big jars.
• October — green tomatoes lifted before the first hard frost, pickled whole with mustard seed; unripe walnuts; the last of the cauliflower.
• November — horseradish root, grated into vinegar, and the red cabbage that has stood well in the cold.

Clean Jars, Tight Lids, Safe Results

This is where good pickles are won and lost. Wash jars and lids in hot soapy water, rinse well, then sterilise them in a low oven at 120°C for 15 minutes, or run them through the hot cycle of a dishwasher and fill them while still warm. Never fill a cold jar with hot vinegar, and never fill a hot jar with cold brine.

Vinegar attacks metal, so use glass jars with plastic-coated or vinegar-proof lids. A bare metal lid will rust within weeks and ruin the batch. Cover the vegetable completely with liquor, leaving about a centimetre of headspace, tap the jar to release trapped air bubbles, and seal firmly. Label with the contents and the date.

Check the jars after a fortnight. Any that are cloudy, fizzy, or sporting a furry cap of mould should be discarded without hesitation — do not simply scrape it off. A faint sediment is normal and harmless; fizzing is not.

Flavourings and the Long Wait

Whole spices keep their character far better than ground ones in an acidic liquor. A classic pickling spice blend of mustard seed, black peppercorns, coriander seed, a few cloves, a bay leaf and a dried chilli will serve you all year. Warm the spices briefly in a dry pan before adding them, and tuck a fresh bay leaf into each jar.

Resist eating the pickles straight away. Onions and shallots need at least six weeks to soften and mellow; beetroot and cabbage are usually ready in three or four; courgettes can be eaten after a week if you are impatient. Store jars somewhere cool and dark — a stone pantry, a north-facing outbuilding or the back of a shed that does not freeze. Kept that way, most pickles will hold their quality for a year.

There is a particular satisfaction in opening a jar of your own shallots in February, with snow on the tops and the fire lit, and tasting a bright afternoon of late September. That is the whole point of the exercise, and it costs you nothing but vinegar, salt and an hour at the sink.