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Fermented milk from Dominican Republic
Boruga is a sweetened sour milk from the Dominican Republic. Raw whole cow's milk is left unheated to sour on its own, then sugar is added at 13 % of the milk. It is a yellowish, lumpy, semi-fluid drink sold in plastic containers.
A short entry: the sources we found record only what is said here about Boruga itself. Its own sources do not record how it is made, so the steps and scenes below are those of Leche agria (Nicaraguan sour milk), the closest documented fermented milk ferment, shown as a guide to the method, not as a record of Boruga.
| Raw whole cow's milk | Not heat-treated[fao-tmp] |
| Sugar13 % of the milk | [fao-tmp] |
| Starter | spontaneous (natural fermentation, no heat treatment) |
Total time across the steps of Leche agria (Nicaraguan sour milk): 25 h – 35 h
What changes: The milk is held hot to kill its own bacteria
Output: heat-treated milk.
Microbes at work in this step
heat kills most of the milk's own bacteria
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
Boruga is a sweetened sour milk from the Dominican Republic. Raw whole cow's milk is left unheated to sour on its own, then sugar is added at 13 % of the milk. It is a yellowish, lumpy, semi-fluid drink sold in plastic containers.
Boruga is soured from raw whole milk and then sweetened heavily (13 % sugar), and it is made without heating, unlike Nicaraguan leche agria, whose milk is heat-treated first.
Made from raw, unheated milk with a spontaneous fermentation; FAO gives a keeping time of up to 10 days at 4 °C. Raw milk can carry E. coli O157:H7, Salmonella, Campylobacter jejuni and Listeria monocytogenes, and the FDA says children are more vulnerable to these pathogens. The FDA says pasteurisation effectively kills raw milk pathogens. This method relies on the raw milk's own bacteria, and no source we read tests it with pasteurised milk.
Every number is labelled with how it is known. How this atlas is made
FAO 1990 records boruga as a popular household drink of the Dominican Republic's cattle areas.
