Home Cosmetic Science Talk Formulating General Heating water

  • Heating water

    Posted by crillz on November 10, 2020 at 11:20 pm

    I’m making a simple gel, basically water, sepimax, 1 percent of oil, preservative and fragrance. I understand this can be all done in cold phase.
    My question: Do I need to or will it have any benefit to heat the water  to 75-80 degrees celsius to help stop microbes or the preservative will work just fine on it’s own?
    Cheers 

    Benz3ne replied 3 years, 4 months ago 2 Members · 3 Replies
  • 3 Replies
  • Benz3ne

    Member
    November 11, 2020 at 12:09 pm

    There’s no harm in boiling your water and leaving it cool to ‘sterilise’ it, though your preservative should do a decent job. Good lab hygiene and cleaning practices help here. Rinse things out with isopropanol before using them will help reduce contamination too. 
    75-80°C will kill some things but not all things, so you’re doing half a job by bringing it up to that temperature alone. 

  • crillz

    Member
    November 11, 2020 at 9:42 pm

    Thanks Benz3ne, thought as such, good to get clarification.

  • Benz3ne

    Member
    November 12, 2020 at 8:36 am

    crillz said:

    Thanks Benz3ne, thought as such, good to get clarification.

    Very welcome.

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