100 ml of water or a bit less than 1\/2 cup (100 ml of water equals 1\/2 cup minus 1 tbs)<\/li><\/ol>\n\n\n\nMethod:<\/p>\n\n\n\n
If using powder, just mix alum and water in a beaker or any other appropriately sized glass or cup. Stir slightly. There might be some excess alum in the bottom, you can add a bit more water or discard\/save the powder for next time. Pour the mix into your spray bottle. <\/p>\n\n\n\n
Alternatively, you can also mix it in the spray bottle, whichever is easier. <\/p>\n\n\n\n
If using crystal, pour water in a glass or cup you are using with the desired amount. Put the whole crystal in the water for a full day. The crystal will dissolve by itself, so you don’t even have to stir it. If you forget about it and come back later, no problem. I normally make a bit of a bigger batch in a jar, and just keep the crystal in water for convenient refills.<\/p>\n\n\n\n
*I like to use a beaker because it already has a spout. I bought a beaker for baking years ago and I put it to use for DIY home recipes as well. You can make the recipe without it no problem.<\/p>\n\n\n\n
NOTE<\/strong>: This is a water based recipe. If you aren’t using distilled water like me, there will be some calcium buildup in the bottle<\/strong> and spray after a couple of months. You will know if the pump is acting up. I clean the bottle once or twice a year with a bit of vinegar, also pumping it through the spray and it’s like new. To avoid it, you can use distilled water or boil the water prior to using it. <\/p>\n\n\n\nAdvanced recipe<\/h3>\n\n\n\n
Ingredients:<\/p>\n\n\n\n
- spray bottle, new or used with a medium dispersion spray<\/li>
- 18 gr or a bit less than 1 tbs of potassium alum powder from a credible source, powder or crystal<\/li>
- 100 ml of water or a bit less than 1\/2 cup (100 ml of water equals 1\/2 cup minus 1 tbs)<\/li>
- 1\/2 tsp magnesium crystal flakes or Nigari<\/li><\/ol>\n\n\n\n
Method:<\/p>\n\n\n\n
Mix all ingredients like in the basic recipe. Add magnesium flakes and stir well. Wait for the mixture to settle and pour into a spray bottle. If you have any precipitate (little particles left in the bottom), add a bit more water, save for next time or discard. <\/p>\n\n\n\n