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Cow milk is heated to 70–85 °C, quark is stirred in and heated until the curd separates, and the drained curd is cooked with butter, then with eggs beaten with salt and caraway, into a smooth yellow mass that sets in moulds. This is a boundary entry; the quark is a fresh lactic curd, but sõir itself is an unripened cheese set by heat.
none; the curd is set by heating quark in milk, with no rennet
Total time across the recorded steps: 24 h
Start
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What changes:Fresh cow milk is heated in the pot
Step 1 of 5
Heat the milk
Time
Not documented
Temperature
70–85 °C
Set
Salt
None given
Acidity
Not documented
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
Cow milk is heated to 70–85 °C, quark is stirred in and heated until the curd separates, and the drained curd is cooked with butter, then with eggs beaten with salt and caraway, into a smooth yellow mass that sets in moulds. This is a boundary entry; the quark is a fresh lactic curd, but sõir itself is an unripened cheese set by heat. Made in 5 steps over 24 h. The longest step, set in moulds or press in cloth, takes 24 h (Maaeluministeerium (Estonian Ministry of Rura…). Lactic acid bacteria, to which the specification credits the slightly sour taste does most of the fermenting.
The milk is heated to 70–85 °C and the curd is cooked again with the eggs. The specification requires packing at the place of making to protect the soft cheese.
The oldest printed mention is in the 'Eesti rahva kalender' for 1853. Archive accounts from the late 19th and early 20th centuries describe sõir made for Pentecost, Midsummer and weddings, and sõir making was added to Estonia's inventory of intangible cultural heritage in 2010. The specification says it is known there since at least the 19th century, was made at a Võru dairy combine for a few years in 1965–1968, and went on sale again from small dairies in the late 1990s, the Nopri farm dairy starting in 1998.