I'm not sure if you bought soda or anhydrous baking soda. Hydrated soda becomes caustic and very slippery to the touch. However, I have used spirulina in the past, they were pills. Are you saying they're useless, better an orange a day? My father has an old gray Astra, a sturdy car. I love it.
However, hope you are spending great holidays.
!LUV