A bacon making kit keeps for 18 months from packing, with the best before date printed on the outer box, and every kit leaves us with at least 12 months still to run on that date. Store it at room temperature, somewhere dry and out of direct sunlight. The bacon you make from it is a different matter entirely: keep it refrigerated and use it within the timeframe given in the booklet, or freeze it, sliced first.
Those two numbers confuse people more than any other question we get, so it is worth separating them clearly. The kit is a dry store item. The bacon is fresh pork.
Why does the kit itself keep so well?
Because there is nothing perishable in the box. Our Bacon Making Kit contains a measured bacon cure and the seasonings for three flavours: pancetta, fennel and juniper, and chilli and garlic. You supply the pork belly on the day you start, or a pork loin joint if you would rather make back bacon.
The cure is a traditional dry mix of salt and sugar with sodium nitrite (E250) and sodium nitrate, listed in full on the pack. Salt and sugar are about as stable as store cupboard ingredients get, and the curing salts are dry chemicals rather than living cultures, so they are not on a countdown in the way yeast or rennet would be. The dried aromatics are the only part that changes with time, and they change slowly.
Every ingredient is listed on the pack; if you have an allergy question, email hello@sandyleaffarm.com before ordering.
What happens if the kit goes past its best before date?
Quality declines rather than the kit becoming unsafe. The bacon kit sits in the flavour-led group, which means an older kit gives you slightly gentler juniper, fennel and pepper rather than a failed batch. That is unlike the wine and cheese kits, where the yeast and rennet are active ingredients that may stop working reliably after the date.
What has not changed is how you use it. Do not reduce the cure, do not exceed the curing time in the booklet, and do not improvise the quantities, because the cure is what preserves the meat. That holds whether the box is a month old or a year past its date.
How do you store the kit once it is open?
Reseal the cure and seasoning packs tightly and keep them cool and dry. A grip-seal bag or a small airtight tub works well for anything left over, and the damp cupboard under the sink is the one place to avoid, because salt and sugar mixes clump when they take on moisture.
Label anything you decant. A curing mix and a seasoning blend are easy to tell apart when you open the box and surprisingly hard to tell apart three months later in an unmarked bag. Keep the booklet with the kit, too, since the timings are the part you will want to check.
How long does home-cured bacon keep?
Keep it refrigerated and use it within the timeframe given in the booklet, or freeze it. That is the rule, and the booklet is the authority rather than any general figure, because it is written around this cure and these timings.
Home-cured bacon behaves rather better in the fridge than shop bacon does, and there is a reason for that. Yours is dry-cured and air-dried, not wet-cured and pumped with water, so it is firmer and more concentrated. It also will not leak water into the pan or shrink the way a supermarket rasher does.
Freezing is the sensible move for anything you will not eat quickly, and there is a right way to do it. Slice the joint first, or cut it into lardons, then spread the pieces on a baking sheet to freeze before you bag them up. Freeze the joint whole and you have to defrost the whole thing every time you fancy a sandwich, which rather defeats the point.
Whatever the age of the bacon, always cook it through before eating. Home-cured bacon is raw cured pork, not a ready-to-eat charcuterie.
How do you know if home-cured bacon has turned?
Use the same judgement you would use on any pork in the fridge, and be honest with yourself. Sliminess on the surface, a sour or ammonia-like smell, any unexpected mould, or a dull grey-green cast to the meat all mean it goes in the bin rather than the pan. Properly cured, well-dried bacon smells clean and faintly sweet, and feels firm and dry rather than tacky.
Two things that are not faults. Bacon that is firmer and darker than shop bacon is simply dry-cured bacon doing what it should. And a slight white bloom of salt on the surface is just salt.
Start from good ingredients and the rest follows: fresh pork from a butcher or a shop you trust, the cure quantities and timings from the booklet, the fridge for the whole process, and a proper rinse and pat dry before air-drying and slicing.
Planning a batch around the date
Curing takes about a week from cure to first rasher, so a bacon kit needs very little forward planning compared with, say, hedgerow wine and its 8 to 12 weeks. If you are buying one as a present, the shelf life does all the work for you. Give it in December and it will still be well inside its date the following autumn, which is plenty of time for someone to find a weekend and a piece of pork belly.
Bacon kit shelf life FAQs
How long does an unopened bacon making kit last?
Eighteen months from packing, with the best before date printed on the outer box. Kits leave us with at least 12 months still to run on that date.
Does the bacon cure go off?
Not in the way fresh food does. It is a dry mix of salt and sugar with curing salts, so keep it sealed, cool and dry, and use the kit before its best before date for the best flavour.
How long does home-cured bacon keep in the fridge?
Keep it refrigerated and use it within the timeframe given in the booklet, or freeze it. Always cook it through before eating.
Can I freeze bacon I have cured myself?
Yes. Slice it or cut it into lardons first, spread the pieces on a baking sheet to freeze, then bag them up so you can take out what you need.
How do I know if my bacon has gone off?
Sliminess, a sour or ammonia-like smell, unexpected mould or a grey-green cast all mean it should be thrown away. Good bacon smells clean and feels firm and dry.
Fancy a week of proper bacon? Take a look at our meat making kits.
