Wednesday, February 16, 2011

Home Made Yoghurt

Ingredients

  • 8 cups 1.5% milk (or whatever percentage you like)
  • Starter yoghurt (4 - 8 oz) - your favorite brand
Necessary equipment:
  • Digital yoghurt thermometer
  • Double boiler (I use a pot inside a larger pot)
  • Electric heating pad
  • Bath towel
  • Whisk
  • Spoon
Directions:
  • Add 1/2 gallon milk (I often add an extra 1/2 cup or so to store separately after the yoghurt is done as my starter for the next batch)
  • Put smaller pot in larger pot which has enough water so it doesn't spill over into the smaller pot when you put it in
  • Put larger pot (with smaller pot in it) on stove
  • Heat on high until thermometer in milk registers 185 degrees F You will need to stir this fairly frequently
  • At this point I lower the heat so I can maintain the 185 temperature, and will keep it at 185 for an additional 30 minutes. I find that the more you do this, the more it contributes to the thickness of the final product
  • Transfer smaller pot and thermometer to your sink (full of cold water)
  • Stir constantly until temperature drops to 110 degrees
  • Remover pot from sink.
  • Add your starter yoghurt and whisk until it is completely blended
  • Cover pot with lid
  • On countertop lay out the bath towel (any reasonably large towel will do)
  • Place heating pad on top of towel
  • Put pot on top of heating pad
  • Wrap the towel/heating pad so the towel completely surrounds the pot - avoid any gaps, etc.
  • Plug heating pad in. The heating pad I have has three settings - I have it at the middle setting.
  • Leave for 7 hours
  • Remove from towel/heating pad
  • Drain off any water (whey) from the yoghurt - being careful not to pour off your yoghurt!
  • Whisk until completely smooth
  • Pour off into containers (I use old 1 quart plastic yoghurt containers and/or 1 quart glass mason jars.
  • (If you added extra milk above - pour this into a small separate container for your next batches starter)
  • Refridgerate yoghurt

Note: The extra heating time mentioned in the directions seems to contribute greatly to the thickness. Yoghurt creates lactic acid as a by-product, which gives the yoghurt a "tang". The longer you leave it in the towel, the "tangier" the result. I've left it in the towel for longer periods of time, but 7 hours seems to work well.

I have seen directions where instead of heating pad/towel, you place the yogurt in open containers in a covered styrofoam picnic container with either a light bulb or jars of boiled water - the heating pad/towel works for me.

I usually sweeten the yoghert with maple syrup in single servings when I eat it.

Double Boiler




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