Can glycerin be used after it's use by date?

Discussion in 'Beginners Soap Making Forum' started by KimT2au, Sep 25, 2018.

Help Support Soapmaking Forum by donating using the link above.
  1. Sep 25, 2018 #1

    KimT2au

    KimT2au

    KimT2au

    Well-Known Member

    Joined:
    Jul 28, 2018
    Messages:
    162
    Likes Received:
    103
    Location:
    Australia
    I found a bottle of glycerin at the back of the cupboard today and it has gone past it's expiry date. It is in an amber bottle so I can't see what the contents look like. Is it possible to still use this for making soap?

    Kim
     
  2. Sep 25, 2018 #2

    shunt2011

    shunt2011

    shunt2011

    Staff Member Admin  

    Joined:
    Apr 3, 2012
    Messages:
    10,737
    Likes Received:
    5,847
    Location:
    Michigan
    My search tells me vegetable glycerin is good for 1-2 years.
     
    KimT2au likes this.
  3. Sep 25, 2018 #3

    OldHippie

    OldHippie

    OldHippie

    Well-Known Member

    Joined:
    Dec 6, 2017
    Messages:
    176
    Likes Received:
    126
    Glycerin is very stable. It would have to be really old before I would give it a second thought.
    I ran into the following, which I thought was interesting:
    GLYCERINE is the most commonly used commercial name in the United States for products whose principal component is glycerol, but it is frequently spelled GLYCERIN. More precisely, however, glycerin applies to purified commercial products containing 95% or more of glycerol. GLYCEROL (CAS registry No. 56-81-5; NIOSH No. MA8050000) refers to the chemical compound 1,2.3-propanetriol, CH2OHCHOHCH2OH, and to the anhydrous content in a glycerine product or in a formulation. Outside the United States. especially in Europe, glycerol is a much more broadly applied term, being employed much in the same manner as glycerine is in the United States. Glycerol in European usage may pertain to any grade of glycerine, including crude.
     
    KimT2au likes this.
  4. Sep 25, 2018 #4

    SaltedFig

    SaltedFig

    SaltedFig

    Well-Known Member

    Joined:
    Feb 25, 2017
    Messages:
    1,350
    Likes Received:
    1,166
    Location:
    Australia
    In Australia we have a mandatory use by/best before date of 2 years (from memory) on all food grade products. Your glycerin is likely to have a best-before, rather than a use-by date, because it will last for a very long time if it's kept sealed up and cool.

    If the bottle was unopened and you purchased it from either the chemist or the supermarket (BP or food grade), then it should be stable for years past the best-before date.

    Why are you putting glycerin in soap? Are you making a shave soap? :)

    @shunt2011 - I tried a quick net search, but gave up (it was a bit :confused:, seeing all the uses for glycerin - waaaay too early in the morning for that).
     
    KimT2au likes this.
  5. Sep 26, 2018 #5

    KimT2au

    KimT2au

    KimT2au

    Well-Known Member

    Joined:
    Jul 28, 2018
    Messages:
    162
    Likes Received:
    103
    Location:
    Australia
    I use it in liquid soap. :D
     
    SaltedFig likes this.

Share This Page