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Matrix list for Aerobic Microorganisms

Matrix group


Types (matrix)

Example of items

Milk & Dairy

Raw milk and dairy products

Raw milks and/or fermented/acidified milks (not heat treated)

Raw milk

Heat-processed milk and dairy products

Pasteurized dairy products

Milk-based desserts, ice creams, drinks, creams

Pasteurized milk-based products

Pasteurized milks


Milk powders


Powder for milk-based desserts



Raw meat and ready-to-cook meat products (except poultry)

Fresh meat (unprocessed)

Carcasses, meat cuts, Carpaccio's

Minced meat, meat preparations, Carpaccio's

Carcasses, swabs, rinsates

Ready-to-cook (processed)

Frozen burger patties, marinated beef shish-kabobs

Ready-to-eat, ready-to-reheat meat products

Cooked meat products

Cooked ham, pâté

Fermented or dried meat products


Raw cured (smoked) (aw > 0,92)

Filet de sax, lard

Raw cured (smoked) (aw < 0,92)

Cobourg ham, dry cured ham

Raw poultry and ready-to-cook poultry products

Fresh meats (unprocessed)

Carcasses, meats, cuts

Fresh meats (unprocessed)

Carcasses, swabs, rinsates

Fresh meats (unprocessed)

Minced meat, meat preparations

Ready-to-cook products (processed)

Seasoned chicken breasts

Ready-to-eat, ready-to-reheat meat poultry products

Cooked meat products

Cooked turkey filet

Fermented or dried meat products

Chicken sausage

Raw cured (smoked) (aw > 0,92)

Smoked turkey filet


Eggs and egg products (derivates)

Eggs (unprocessed)

Shell eggs

Egg products (heat processed) with additives (salt or sugar >2%)

Egg yolk, egg white, whole liquid egg

Egg products (heat processed) without additives

Egg yolk, egg white, whole liquid egg


Egg powder

Fish & Seafood

Raw and ready-to-cook fish and seafood (unprocessed)

Fish (unprocessed)


Shellfish (unprocessed)

Oyster, clam, scallop, mussel

Crustaceans (unprocessed)

Shrimp, crab and crab meat, lobster

Ready-to-eat, ready-to-reheat fishery products

Cooked fishery products

Shelled and shucked products of cooked crustaceans, fish and seafood terrines

Acidified and marinated fishery products

Roll herring, anchovy

Smoked or cured, and other processed products (aw > 0,92)

Smoked fish

Smoked or cured, and other processed products (aw < 0,92)

Smoked fish, dried (salted) fish


Fresh produce and fruits

Cut ready-to eat fruits

Fruit mixes

Cut ready-to-eat vegetables

Bagged pre-cut leafy vegetables, salads, shredded carrot


Soy, fenugreek, alfalfa, mung

Raw fruit/vegetable juices (unpasteurized)

Freshly squeezed strawberry juice, smoothies, carrot juice

Processed fruits and vegetables

Heat-processed fruit/vegetables juices

Pasteurized apple juice

Heat processed vegetables and fruits

Blanched spinach, frozen vegetables blanched

Fermented/acidified vegetables

Fermented cabbage, pickle

Dried cereals, fruits, nuts, seeds and vegetables

Low and IMF fruits (aw <0.85)

Syrups, concentrates, jams, semi-dried prunes


Spices, herbs, peppers

Nuts and seeds

Nuts, nut meats, nut butters, seeds

Dried fruits and vegetables (aw <0.60)

Freeze-dried vegetables

Dried cerealas

Corn, oat, breakfast cereals


Wheat, buckwheat, oat

Probiotic ingredients

Pre-blend, spray dried, culture powders (probiotics)

Infant formula and infant cereals

Infant formula and infant cereals

Non-probiotic ingredients

Dehydrated milk, dehydrated yoghurt, dehydrated berries

Non-probiotic infant formula

Whey-based (dairy), soy-based (vegetables) fortification formulation

Probiotic infant formula

Whey-based (dairy), soy-based (vegetables) fortification formulation

Non-probiotic infant cereals

Infant cereals

Probiotic infant cereals

Probiotic infant cereals

Chocolate, bakery products and confectionary

Chocolate, bakery products and confectionary


Bakery products with custard, confectionaries

Dry powered

Cake mixes

Low moisture

Crackers, breads, cookies

Dry & sugared low moisture (aw <0.85)

Cake, pralines, marzipan

Dry & sugared low moisture (aw <0.65)

Biscuits, chocolate, confectionary, honey, sugar, candy syrups

Multi-component foods

Multi-component foods or meal Components

Composite processed foods (cooked)

Hot meals

Ready to (re)heat food: refrigerated

Cooked chilled foods, boiled rice or pasta, vol-au-vent in vacuum

Ready to (re)heat food: frozen

Frozen fries, pizza, stuffed croissants

Ready to (re)heat food: ambient stable (canned)

Vol-au-vent in glass bottles

Mayon­naise based delisal­ads (acid) with raw ingre­dients

Raw vegetable salads with dressing

Mayon­naise based delisal­ads (acid) with pro­cessed ingre­dients

Sandwich spreads

Ambient stable acid foods (pH < 4,8)

Ketchup, sauces, dressings, mayonnaises, mustard


Pet food and animal feed

Animal origin ingredients

Meat and bone meal, chicken and feather meal, fish meal, animal digest

Plant origin ingredients

Com meal, soybean meal, vegetables

Other ingredients

Microbial products such as yeast extracts, probiotics

Dry food (aw ≤0,7)

Pellets, treats

Wet food (aw > 0,7)

Fresh meat, sausages, croquettes

Animal feeds (bovine, ovine, pig)

Cereals, flours

Animal feeds (poultry)

Cereals, flours

Animal feeds (fish)

Cereals, flours

Environmental samples

Environmental samples (food or feed production)

Equipment or production environment

Swabs, dusts

Waters used in manufacturing process

(Recycled) washing water, process water



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