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Raw cow milk from farms within a 25 km circle is warmed, seeded with a whey starter and set with calf rennet in open copper vats. The curd is cut to rice-sized grains, cooked to 53–57 °C, pressed into large wheels and salted. The wheels ripen on spruce boards, rubbed with salt and morge, for at least 120 days.
No fixed amounts recordedThe specification fixes the steps and limits, not the amounts. A vat may give at most 12 wheels per make and three makes a day.
Raw cow milk
Cooled straight after milking to 10–18 °C; never heated above 40 °C before renneting[comte-cdc-2026]
Whey starter and cultures
Starters incubated at least 3 h on whey, recuite or milk (mesophilic lactococci may go in directly); a starter grown on raw whey is compulsory; all starters together at most 0.5 % of the milk[comte-cdc-2026]
Rennet
Commercial bovine rennet with at least 520 mg chymosin per litre and no added pepsin; dried calf stomach may also be macerated[comte-cdc-2026]
Salt
Dry salt or brine within 24 h of unmoulding, then brine and morge on the rind[comte-cdc-2026]
Starter
natural whey starter (raw whey culture) plus natural or selected cultures
Total time across the recorded steps: 4.7 months
Start
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What changes:Starting material: raw milk from farms close to the dairy
Step 1 of 8
Collect and cool the raw milk
Time
Not documented
Temperature
10–18 °C
Set
Salt
None given
Acidity
Not documented
Which microbes the steps name, step by step
Lactobacilli
S. thermophilus
Lactobacillus helveticus
L. delbrueckii
Propionibacteria
Output: raw milk.
Flavour
Not documented
Texture
Not documented
Colour
white
Microbes at work in this step
native raw-milk flora
Method
Measured measured in a studySet fixed by a specification or tested recipeReported one source reports itTypical a general value, not sourced for this fermentUnconfirmed not yet checked against a source
At a glance
Raw cow milk from farms within a 25 km circle is warmed, seeded with a whey starter and set with calf rennet in open copper vats. The curd is cut to rice-sized grains, cooked to 53–57 °C, pressed into large wheels and salted. The wheels ripen on spruce boards, rubbed with salt and morge, for at least 120 days. Made in 8 steps over 4.7 months. The longest step, ripen on spruce boards, takes at least 3.9 months (Ministère de l'agriculture 2025) and runs at 5–19 °C (Ministère de l'agriculture 2025). Streptococcus thermophilus and Lactobacillus helveticus and Lactobacillus delbrueckii do most of the fermenting.
Comté must be made from raw milk in open copper vats, by hand, in fruitières that collect milk only from farms close by. It ripens on spruce boards with a smear rind for at least 120 days. The French IGP Gruyère is made in a similar way but must also spend time in a warm cellar to form eyes.
Milk
Raw milk from within a 25 km circle, cooled straight after milking to 10–18 °C and heated to no more than 40 °C before renneting
Starter
Starters incubated for at least 3 h; a starter grown on raw whey is compulsory
Rennet
Commercial bovine rennet with at least 520 mg chymosin per litre and no added pepsin
Cooking
In an open copper vat the curd is held at 53–57 °C for at least 30 min
Pressing
At least 100 g/cm² for at least 6 h
Salting
Dry salt or brine within 24 h of unmoulding (brine for up to 12 h); morge on one face and the heel within 36 h, on the other face within 60 h
Pre-ripening
At least until day 21, at 10–13 °C and RH above 90 %
Ripening
On spruce boards for at least 120 days from the making date, the fermentation cellar at 19 °C or below
Size
32–45 kg, 55–75 cm across, heel 8–13 cm; fat in dry matter 45–54%
Comté is a raw-milk cheese, made as a cooked pressed cheese with the curd held at 53–57 °C and a ripening of at least 120 days. ANSES advises pregnant women, people over 65, people with weak immunity and young children to avoid raw-milk cheeses, except pressed cooked cheeses such as gruyère or comté.