Mashtronauts Charitable Events


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The Bay Area Mashtronauts are currently planning a fundraiser for the Pasadena Animal Shelter that was significantly impacted by the recent tornado. Many brewers have their favorite four legged brewing companions, so we wanted to use our brewing skills to help them out.

We are asking our brewers to use their spent grains to make dog treats. A recipe is provided on this page for making dog treats. You may follow this recipe or make slight alterations. We have premade labels, so if you deviate from the recipe, we ask that you list any special ingredients that can be listed for possible allergies. We would not want any animals getting sick. Also, remember that hops are lethal for dogs, so please don’t use any grains that come into contact with hop matter.

We have a sign up sheet for anyone interested in making the dog treats. There is even an option if you are not brewing (or not a brewer) and would like to help out. We can share some grains with you to use. Any other ingredients are at your own expense as a contribution to the fundraiser.

The club is obtaining packaging and labels to use. We will designate a time/place to pick up the treats and package them. We have set up a sales event at Vallenson’s Brewing at 1:00 pm on Sunday Febraury 26th, 2023. The form also allows you to volunteer to help sell the treats at the event. We may look at other options for treat sales in different locations (and different days). As we set up events, they will be posted on this page.

Dog Treat Sign Up Form


● 4 cups spent grain
● 2 cups flour
● 2 eggs
● ¾ cup peanut butter

  1. Preheat oven to 250 degrees Fahrenheit
  2. Lightly spray baking tray with cooking spray
  3. Mix all ingredients together in one bowl
  4. Roll mixture out using a rolling pin or your hands
  5. Cut into dog-sized treats using a cookie cutter or knife
  6. Bake for around 3 hours – be sure treats are completely dried out or else they can
    develop mold!
    Grains do not need to be dried before baking. Freeze your spent grains until you are ready to
    bake treats. If you only refrigerate them, they will not last more than 2 days before spoiling.