Ferment four different things - PEM BB food.straw.ferment

This is a badge bit (BB) that is part of the PEM curriculum.  Completing this BB is part of getting the straw badge in Food Prep and Preservation.

For this badge bit, you will ferment four different types of things!  This is similar to the PEP BB for Ferment four different things (one gallon) so maybe you can get that one too.

Here are Some Related Books:
- Wild Fermentation by Sandor Ellix Katz
- The Art of Fermentation by Sandor Ellix Katz
- Nourishing Traditions by Sally Fallon

Here are some related articles"
- Making Sauerkraut
- Fermented Apple Cranberry Chutney
- Step by Step Sourdough Recipe Guide
- Milk Kefir Master Recipe
- Home Brewing Kombucha

Here are some related videos:

Sauerkraut


Fermented Apple Chutney


Making Apple Cider Vinegar


Making Sourdough


Making Milk Kefir


Minimum requirements:
- Ferment four different types of things - At least one half gallon per type of fermented food - possible examples are listed for each type:
  - Vegetable (minimum of 1 required)
      - Sauerkraut
      - Kimchi
  - Fruit (minimum of 1 required)
      - Apples
      - Pickles
      - Ketchup
  - Vinegar (do exactly 1)
      - Apple cider vinegar
      - Wine vinegar
  - Sourdough
  - Dairy
      - Yoghurt
      - Cheese
      - Sour cream
      - Buttermilk
      - Kefir
  - Drinks
      - Cider
      - Wine
      - Beer
      - Water kefir
      - Kombucha

Clarification:
  - The "half gallon" is the total jar volume.  As long as it's reasonably full and there is a good ratio of food to liquid, it counts as a half gallon
  - Two quart jars qualify as well

Provide proof of the following as pictures or video (<2 min):
   - Starting materials for each of the four different fermented things
   - Preparing the fermented things before they go into their fermentation vessels
   - Putting the fermented things inside their fermentation vessels
   - Fermented things fermenting
   - Half a gallon of four different fermented things with appropriate labels