!/#3, http://fromkarenskitchen.com/tips/how_to_test_yeast.php, http://www.saps.org.uk/saps-associates/browse-q-and-a/169-q-a-a-how-does-sugar-affect-yeast-growth, http://www.huffingtonpost.com/2013/03/26/how-to-use-yeast_n_2950589.html, https://www.fsis.usda.gov/wps/portal/fsis/topics/food-safety-education/get-answers/food-safety-fact-sheets/appliances-and-thermometers/kitchen-thermometers, http://healthcare.utah.edu/healthlibrary/library/herbs/all/doc.php?type=19&id=BrewersYeast, consider supporting our work with a contribution to wikiHow. Stir the yeast into the water, then cover the bowl and leave the yeast to proof for 10-15 minutes at room temperature. Use a food thermometer to measure the temperature of the water. You can use this method to test active dry yeast or fresh yeast. Heat the water to approximately 100 degrees F (40 degrees C). The yeast should start eating the sugars, in which case you will start to see bubbles from the carbon dioxide that is forming. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d8\/Test-the-Freshness-of-Yeast-Step-1.jpg\/v4-460px-Test-the-Freshness-of-Yeast-Step-1.jpg","bigUrl":"\/images\/thumb\/d\/d8\/Test-the-Freshness-of-Yeast-Step-1.jpg\/aid1452753-v4-728px-Test-the-Freshness-of-Yeast-Step-1.jpg","smallWidth":460,"smallHeight":306,"bigWidth":"728","bigHeight":"485","licensing":"

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