Showing posts with label troubleshooting. Show all posts
Showing posts with label troubleshooting. Show all posts

Thursday, April 19, 2018

Yogurt Routine


                I have gotten into a pretty good yogurt-making routine by now. The whole process takes many hours, but it is mostly hands-off. One area I’ve been having trouble with is heating the milk without burning it. If I do not stir the milk often enough while it is heating, it starts to burn to the bottom. Once, the burnt milk pieces come off the bottom of the pot while mixing the milk, and I ended up with little burnt flecks floating around the milk. To solve that problem, I strained the milk through a cloth to remove all of the burnt particles. I was glad that worked and I did not have to waste an entire gallon and a half of milk!

                I have read suggestions of methods to prevent burning the milk. They include heating the milk on a double boiler, stirring frequently, using a low flame, or heating it in a microwave. Until I invest in a very large double boiler, I will just have to be more careful about stirring the milk often, and of course not using a high flame.

                Even though I have made many batches of yogurt since I started making it a few months ago, I always am excited to see the results in the morning. For some reason, I am constantly surprised that the milk has yogurted!


looks like a science experiment...waiting for the milk to cool to 115⁰ F before adding the yogurt starter. 


the milk wrapped with a pot of boiling water on either side to keep it incubated all night 

it yogurted! you can see that it is thick because I am holding the pot tilted and the yogurt is keeping its shape


Thursday, January 4, 2018

Lots of Yogurt

                Because my small batch of yogurt was fairly successful, I was ready to try a larger run. I bought a gallon of 1% milk from my favorite National Wholesale Liquidators that sells milk for $3.00 usually. I had in the fridge Stop and Shop brand low fat yogurt that contained live and active bacterial cultures. And I was ready!

                This time, I heated my milk up in a crockpot. It took close to 4 hours for the milk to reach 185⁰F. Then, somewhat foolishly, I attempted to cool the milk by immersing it into a sink filled with cold water. Big mistake! Immediately, the crock developed a hairline crack. I quickly, (with the help of SP,) transferred the milk into 2 cooking dishes, and then let them cool on their own. Unfortunately, I let them cool to lower than 115⁰F, so I put them into the oven to warm them back to that temperature. In the meantime, I put about ½ cup of the yogurt to be used as the starter into a bowl. As soon as the milk was 115⁰F, I mixed about 1 cup milk into the yogurt, and then poured half the starter into each of the 2 cooking dished. I covered the dishes, then draped them with a blanket, and put 2 pots of boiling water on top to help maintain the warm temperature. I let the yogurt incubate for 8 hours. Then, I strained the yogurt for about 2 hours.

                I was intrigued that the yogurt from each of the dishes came out different than each other. The one in the shallow pan incubated at a lower temperature (likely due to the increased surface area it had to let heat escape.) That yogurt was a bit thinner, maybe a tad thinner than typical yogurt, but still definitely a yogurt consistency. The other one was much thicker, closer to Greek yogurt consistency. And both of the yogurts tasted like…yogurt! It was not too tart. It just tasted like plain yogurt. And none of the slightly grainy texture I had in my first one. It made about 4 quarts of yogurt, which means that it costed about $0.75 to make 1 quart of yogurt. I was pleased.  


Now, I have to find another method of heating my milk. I might get a large pot to be used for just this purpose. 

thicker yogurt before straining

thinner yogurt before straining


the yogurts straining!


thick yogurt after straining...it looks like yogurt, right?