Home-cured bacon slices best when it is cold, firm and cut with a long, sharp knife in single smooth strokes rather than a sawing action. Chill the cured slab thoroughly, trim one flat face to work from, and slice across the width at roughly 2 to 3mm for everyday rashers, thicker if you like a chewier bite. The good news is that curing has already done most of the work for you: a properly cured and air-dried belly is a far more cooperative thing to slice than the wobbly raw joint you started with.
Why is cured bacon easier to slice than raw pork belly?
Raw pork belly is soft, slippery and full of water. Try to cut thin rashers from it and the knife drags, the layers of fat and meat slide against each other, and you end up with slices that are thick at one end and paper thin at the other.
Curing changes that. The cure draws moisture out of the meat, and the air-drying stage in the fridge that follows takes out more. By the time your bacon has air dried it is noticeably firmer than raw belly, and it slices cleanly. If your slab still feels wet or floppy at this point, that is a signal rather than a problem: it needs longer in the fridge so more moisture is drawn out, and it is worth checking the cure was rubbed in evenly.
There is a related payoff in the pan. Because home-cured bacon is dry-cured and air-dried rather than wet-cured and pumped with water like most supermarket bacon, it crisps up properly instead of leaking a puddle of white liquid and shrinking to half its size. Neat slices of it stay neat slices.
How thick should you slice bacon?
There is no single right answer, only right answers for different jobs. As a rough guide:
- Thin, around 2mm. The classic breakfast rasher. Crisps fastest, curls most, best for sandwiches where you want crunch in every bite.
- Medium, around 3 to 4mm. The everyday default. Enough body to stay chewy in the middle while the edges crisp, and forgiving if your knife work wanders.
- Thick, 5mm and up. Closer to a rasher you eat with a knife and fork. Lovely with eggs, and the right cut if you are grilling rather than frying.
- Lardons. Not slices at all. Cut the slab into planks, then into short batons, for carbonara, stews and anything that wants little nuggets of bacon rather than sheets.
Streaky bacon comes from pork belly, which is what most home curing kits are built around, because the thinner joint cures faster and more reliably at home. Back bacon comes from pork loin, and the same cure works on a 500g loin joint with the skin removed if you prefer the leaner rasher. Loin slices are a little easier to keep even, since there are no alternating bands of fat to negotiate.
Which knife should you use?
A sharp kitchen knife does the job, and that sentence is doing more work than it looks. Sharp matters far more than special. A blunt blade crushes and tears the fat instead of parting it, and no amount of technique rescues that.
If you are choosing between the knives in your block, reach for the longest one with a straight edge. A carving knife or a long chef's knife lets you draw the blade through the slab in one continuous pull, which is what gives you a flat, even face. Short blades force you to saw, and sawing is what produces those ragged, stepped slices. A serrated bread knife is the wrong tool here: it tears the meat fibres rather than slicing them.
Technique is simple enough. Set the slab on a board with the fat cap down and the skin already removed. Trim one end square so you have a flat reference face. Then place the heel of the blade at the far edge, and pull the knife towards you through the meat in a single stroke, letting the length of the blade do the cutting rather than pressing down. Keep your guiding hand's knuckles against the flat of the blade so each slice comes off the same thickness as the last.
And if you happen to own a meat slicer, use it and know that we are quietly jealous.
Does chilling really make that much difference?
It makes an enormous difference, and it is the single easiest improvement available to you. Fat is soft at room temperature and firm when cold, so a slab straight from a cool fridge cuts cleanly while the same slab left on the counter for an hour smears.
For very thin slices, go further: twenty to thirty minutes in the freezer before you start firms the outside just enough to make thin, even slicing much easier, without freezing the meat solid. It is the same trick used for slicing beef thinly for jerky, and it works just as well on bacon. If the slab softens as you work through it, put it back in the fridge for ten minutes rather than pressing harder.
One more preparation note. After curing, rinse off the excess cure and pat the bacon dry before it goes in to air dry. Rinsing also helps control how salty the finished bacon is, so it is not a step to rush.
How should you store and freeze your slices?
Keep the bacon refrigerated and use it within the timeframe given in your booklet, or freeze it. Always cook it through before eating: home-cured bacon is raw bacon, exactly like the packet kind.
Freeze it sliced rather than whole. If you freeze the joint in one piece you have to defrost the whole thing every time you fancy a sandwich, which nobody does twice. Slice it (or cut it into lardons) first, spread the pieces on a baking sheet so they freeze separately, then bag them up once solid. You can then take out three rashers at a time.
Two extras from the trimmings. The skin you removed makes excellent pork scratchings: cut it into bite-size pieces, toss with salt and a splash of vinegar, then roast on a wire rack in a hot oven until puffed and crisp, watching closely near the end. And the odd-shaped end slices, the ones that never look tidy, are the ones to dice into lardons.
Slicing bacon FAQs
Do I need a meat slicer to make bacon at home?
No. A sharp kitchen knife slices air-dried bacon cleanly, because the curing and drying process leaves the slab much firmer than raw pork belly.
Should I slice bacon with or against the grain?
Across the width of the slab, so each rasher shows the alternating layers of meat and fat. That is what gives streaky bacon its familiar stripes.
Why are my slices uneven?
Usually a blunt or short knife, a slab that has warmed up, or sawing instead of pulling. Sharpen, chill and slice in one long stroke.
Can I slice bacon before it has finished air drying?
Better not to. Wet, soft bacon slices badly and has not finished developing its texture. Give it more time in the fridge, then slice.
Which cut should I use for the neatest rashers?
Pork belly gives classic streaky bacon and is the most reliable to cure at home, which is why the Bacon Making Kit is written around it. Loin gives leaner back bacon and slightly tidier slices.
Fancy curing your own? Have a look at our meat making kits.
