Do I have to heat up Yogurt?

Do I have to heat up Yogurt? - Green Plant in Close Up Photography

Considering the heat wave, I've been thinking - most instructions for Yogurt making say to take starter culture, put it in milk, put the milk in a warm pot (or a yogurt maker) for several hours and you've got yogurt.

But it's fairly hot now, with outside air temperatures in the 90s (F). What would happen if I just mix starter and milk and leave it out? Is there danger of spoilage?



Best Answer

You get better / more consistent results if you keep a constant temperature. 'The Art of Fermentation' says

to make nice thick yogurt you must incubate it, maintaining it in a temperature range between 110° and 115°F/43° and 46°C.

By leaving your yogurt outside you're exposing it to temperature variations, which can get too low (perhaps not hot enough for proper fermentation, or you'll need more time and won't be thick enough, and possibly just enough for harmful bacteria to "win" the battle agains the yogurt starter) or too hot (which could curdle).

You'll have no control of how much time you need for your yogurt to be ready.




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Quick Answer about "Do I have to heat up Yogurt?"

Yogurt is made by heating, cooling and then fermenting milk using healthy streptococcus and lactobacillus bacteria. The final product can be consumed hot or cold. However, if heated past a certain point, the bacteria in yogurt will die.

Is it okay to eat yogurt not cold?

According to the US Department of Health & Human Services, you should throw out yogurt if it's been out at room temperature for more than two hours. If the temperature is higher than 90 degrees Fahrenheit, you only have one hour to eat that yogurt sitting out of the refrigerator.

Is it okay to microwave yogurt?

Microwaving Yogurt Tips First, remove the yogurt from its container and place just the amount you need in a microwave-safe bowl. It is advisable to keep the bowl cover slightly off the top when microwaving yaourt to ensure it heats safely and is breathable.

What happens if you eat room temp yogurt?

Yogurt left out at room temperature should be eaten within two hours, the USDA recommends. Past that point, it's not spoiled\u2014 yet\u2014but the longer it sits out, the more acidic and rancid it will get, killing off all the good bacteria. "It will taste nasty before it goes bad," Gummalla said.

Can you warm plain yogurt?

Is It Safe To Microwave Yogurt? The yogurt is safe to be microwaved when warmed at a low temperature and power limit. When setting such controlled measures, the probiotics bacterial content of yogurt remains unaffected by the thermal process.



Homemade Yogurt Experiment - should you heat up milk before fermentation ?




Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

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