Potassium nitrate (E252)
Potassium nitrate (E252) is not a marker of ultra-processing. It is one of the markers Open Food Facts uses to classify a food as processed (NOVA group 3).
What it is and why it counts
Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.
Preservation and traditional processing
Preservatives, enzymes and cultures keep food safe or carry out traditional processes such as fermentation. Open Food Facts counts them as signs of processing (group 3), not ultra-processing.
Function
- Preservative
- Preservatives are substances which prolong the shelf-life of foods by protecting them against deterioration caused by micro-organisms and/or which protect against growth of pathogenic micro-organisms.
Where it turns up
Potassium nitrate (E252) appears in 186 of the 40,000 products on this site (0%).
Products containing potassium nitrate (E252)
-
Stromboli
Crosta Mollica
NOVA group
4
-
Wiltshire Cured Ham
Tesco Finest · 120 g
NOVA group
3
-
Charlie Bingham Lasagne
Charlie Bigham's · 690 g
NOVA group
3
-
Unsmoked Rashers
Jolly hog · 200g (6 rashers)
NOVA group
3
-
Sliced chorizo
Dulano · 120g
NOVA group
4
-
Prosciutto Crudo
Tesco
NOVA group
3
-
Finely Sliced Honey Roast Ham
Tesco Finest · 120 g
NOVA group
4
-
Lentil & bacon soup
Baxters
NOVA group
4
-
Wiltshire cured ham slices
Lidl · 120g
NOVA group
3
-
Chicken, Leek & Smoked Bacon Pie
Mark & Spencer · 500 g
NOVA group
3
-
Milano Salami
Sainsbury's · 86g
NOVA group
4
-
Dry cured Ham
Tesco
NOVA group
3
-
Lasagne for 1
Charlie Bigham's · 355g
NOVA group
3
-
Serrano ham
Sainsbury’s
NOVA group
3
-
Tortelloni Chicken & Chorizo
Tesco · 300g
NOVA group
4
-
10 Smoked Back Bacon Rashers
Tesco
NOVA group
3
-
Finely Sliced Roast Beef Brisket
TESCO finest
NOVA group
3
-
Tesco Spreadable Brussels Pâté British Pork Britis
Tesco
NOVA group
3
-
Tomato and pancetta pasta sauce
Specially Selected · 340 g
NOVA group
3
-
Italian Salami
Tesco
NOVA group
4
-
Smoked Back Bacon
Lidl · 300g
NOVA group
3
-
Thick Cut Back Bacon
Birchwood · 360g
NOVA group
3
-
Spicy Italian Woodfired Pizza
Charcuti · 486 g
NOVA group
4
-
Spicy Schiacciata Salami & Buffalo Mozzarella Woodfired Soughdough Pizza
Deluxe · 493 g
NOVA group
4
-
Spicy Chorizo Ring
Sainsbury's
NOVA group
4
-
Spanish Serrano Ham
Aldi · 100 g
NOVA group
3
-
Stromboli Pizzetta
Crosta Mollica · 2 x 217 g
NOVA group
4
-
Spanish Dry Cured Spicy Pork (Chorizo Salami)
THE deli
NOVA group
4
-
Thick Whole Slices Roast Ham
Tesco · 120 g
NOVA group
4
-
King Prawn, Chicken & Chorizo Paella
Aldi Specially Selected · 800g
NOVA group
4
-
Serrano Ham Slices
Dulano · 70g
NOVA group
3
-
Spicy chorizo
Lidl Deluxe · 200g
NOVA group
4
-
Lasagne four layers of egg pasta with grana padano bechamel
Trader Joe's · 800g
NOVA group
4
-
Pizzeria Stromboli Spicy Salami Calabrese & Ventricina
Crosta & Mollica · 447g
NOVA group
4
-
Wood Fired Pizza Ultra Thin Italian Fennel Salami & Red Onion
M&S Collection · 170g
NOVA group
4
-
Steak Pie
M&S Food · 500g
NOVA group
3
-
Chorizo slices
Tescos
NOVA group
4
-
Chicken & Chorizo Pasta
Tesco
NOVA group
4
-
10 Unsmoked Back Bacon Rashers
Tesco · 300g
NOVA group
3
-
Back Bacon Rashers
Sainsbury's · 300g
NOVA group
3
-
British Cooked Ham
Ashfields
NOVA group
4
-
Finely Sliced Witshire Cured Ham
Tesco · 125g
NOVA group
3
-
Ham
250 g
NOVA group
3
-
Beef lasagna
Marks & Spencers · 800g
NOVA group
3
-
Honey roast ham
Tesco
NOVA group
3
-
Bacon
J.James
NOVA group
3
-
Wiltshire cured ham
M&S Collection · 110 g
NOVA group
3
-
5 spanish serrano ham slices
Tesco · 80g
NOVA group
3
-
Roasted dry cured ham
Tesco · 125g
NOVA group
3
-
Authentic Spanish Chorizo Ring
Specially Selected · 200g
NOVA group
4
-
Chicken & Bacon Tortelloni
Sainsbury's · 300g
NOVA group
4
-
finest £3. TESCO finest Finely Sliced Apple Wood S
Tesco
NOVA group
3
-
Lasagne
Sainsburys · 400g
NOVA group
4
-
Ham
Specially selected · 120 g
NOVA group
3
-
Crumbed Wiltshire Cured Ham
Tesco finest
NOVA group
4
-
Unsmoked British Bacon Medallions
Sainsburys · 200g
NOVA group
3
-
Smoked Back Bacon
Aldi · 250 g
NOVA group
3
-
Cooked ham
Co Op Irresistible · minimum 5 slices 120g
NOVA group
3
-
Chicken and prawn paella
Inspired cuisine
NOVA group
3
-
Saucisson Sec
Oulana
NOVA group
4