mysubtleascention Posted June 6, 2013 (edited) Aero gypsum recipe: / resembles making a cake / - preheat the oven at 150 Celsius - mix the dry gypsum powder and a tea spoon of baking soda in a bowl - mix the water and half a tea spoon of citric acid separately - pour the liquid into the powder gradually while stirring - cover a baking plate with aluminum foil - pour the dough into the plate 0,5 - 1 cm thick - bake till the bubbles start bursting on the drying out surface - 10 min. or so .. and remove from the oven - crush in small pieces when cold and mix along with the desired components in your substrate Perhaps Astrophytum ,Ariocarpus and other gypsum lovers will enjoy this experiment .. Edited June 6, 2013 by mysubtleascention 3 Share this post Link to post Share on other sites
Halcyon Daze Posted June 6, 2013 good idea, but baking soda mixed with vinegar really kills grass. I don't know why but I think it has something to do with the salts formed in the reaction. Proceed with caution Share this post Link to post Share on other sites
coolname Posted June 6, 2013 sounds like a recipe for crack Share this post Link to post Share on other sites
