Gaining

Pre-mixed shakes (think meal prep)

Has anyone tried making a weeks worth of gainer shake at once? Do you think there would be any issues with the following mixture made up for a week or so?

Each shake is about 32-36 ounces and 3k cal:
-16oz heavy cream
-8oz chocolate ice cream
-8oz milk
-3/4 cup Carbo gain (maltodextrin)
-3 tbsp peanut butter

1 week of shake would be about 2 gallons. Not sure how these ingredients might get along once mixed for any period of time. Thoughts?

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5 years