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Cheese from Spain, Castile and León, the province of Zamora
Zamorano PDOQueso Zamorano
Whole milk of Churra and Castellana ewes is set with rennet at 28–35 °C, cut into small grains, warmed to no more than 40 °C and pressed into flat cylinders. The wheels are brined or dry-salted, then ripened at least 100 days, or 60 days for small cheeses, into a hard sheep cheese whose sides carry the mark of a woven esparto band.
What changes:Starting material: whole milk of Churra and Castellana ewes
Step 1 of 7
Collect whole ewe milk
Time
Not documented
Temperature
Not documented
Salt
None given
Acidity
Not documented
The ewes graze pasture, stubble and crop leftovers; in winter and at lambing their feed is topped up with good hay and legume or cereal straw.
Flavour
Not documented
Texture
Not documented
Colour
Not documented
Microbes at work in this step
Not documented for this step.
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
Whole milk of Churra and Castellana ewes is set with rennet at 28–35 °C, cut into small grains, warmed to no more than 40 °C and pressed into flat cylinders. The wheels are brined or dry-salted, then ripened at least 100 days, or 60 days for small cheeses, into a hard sheep cheese whose sides carry the mark of a woven esparto band. Made in 7 steps over 2 months. The longest step, ripen, turn and clean, takes at least 2 months (Instituto Tecnológico Agrario de Castilla y L…) and runs at 10–12 °C (Otero V 2022).
Zamorano is made only from Churra and Castellana ewes or their first crosses, whose milk is very rich (at least 6.5 % fat). Large wheels must ripen at least 100 days, and the ripe paste can show small white tyrosine crystals.
Milk
Whole ewe milk of Churra and Castellana breeds or their F1 crosses with Spanish Assaf
Paste
Pressed, hard; at least 45 % fat and 30 % protein in dry matter, at least 55 % dry matter, pH 4.8–5.8
Ripening
At least 100 days (60 days under 1.5 kg)
Size
Flat cylinder up to 14 cm high, 24 cm across and 4 kg
Small ZamoranoWheels under 1.5 kg may be sold after 60 days instead of 100.
Safety
The specification does not require raw milk. In a 2022 trial, E. coli O157:H7 added to raw ewe milk fell during ripening at 10–12 °C but was still found after two months, so raw-milk Zamorano depends on clean milk. ANSES advises pregnant women, young children, people over 65 and people with weak immunity to avoid raw-milk cheeses other than cooked pressed ones such as Gruyère or Comté.
Hazards the sources name: Shiga-toxin-producing E. coli O157:H7, added to raw ewe milk in a trial; it fell during ripening but was still found after 2 months.
Zamora documents from the resettlement of the mid-11th century mention cheese, and local agrarian charters from the later 11th century list it among food given to vassals. The Catastro of the Marquis of Ensenada recorded the province's cheese and flocks in 1752. Small family dairies began in the late 19th century and grew into today's industry. Zamora supplies 18 % of Spain's ewe milk. An amendment applied for in 2012 and published on 16 December 2014 let makers use milk from first crosses with Spanish Assaf rams, lowered the minimum milk fat from 7 % to 6.5 % and cut the minimum ripening of cheeses under 1.5 kg to 60 days; Regulation (EU) 2015/625 of 20 April 2015 approved it.
Starter
The sources we found do not say how its fermentation begins.