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Storage and Preservation of Concentrated Cannabis

JRR22611
Well-Known Member
  • Nov 23, 2015
  • #1
  • Firstly – don’t do what i did.
    I ruined a beautiful 10g example of concentrate by using ISO to sterilize the platinum cured silicone container that would hold the extract.
    I only used small amounts of ISO, heavily rinsed, and waited a day before loading the container.
    Next day, assuming all ISO would have left the container completely, I filled it with concentrate but the stinging “chemically” smell of ISO still lingered and eventually leeched into the concentrate itself over time.

    My recommendation for cleaning your silicone is as simple as warm water and a soft brush.
    A mild degreaser/dishwashing gel should be used to rid the silicone of oils and chemical that accumulates in the production factories.

    To take things to the next level of sterility, one could place their platinum cured silicone in boiling water for roughly 30 seconds (increment of time should be judged based on thickness and grade of silicone).

    I use the latter method and have had success as it seems to eliminate the whitish “filmy” residue you’ll see on a slab of shatter after its sat on the surface of normal silicone for a period of time.

    Preservation of concentrate is another story as in my experience I found the quality of concentrate will degrade over time even in controlled temp environments.
    Input for preserving that extra special batch of concentrate would be appreciated.

    Input for keeping clean/sterile containers will be appreciated.

    Thanks for your time.

    herbivore21
    Well-Known Member
    • Nov 23, 2015
  • #2
  • Firstly – don’t do what i did.
    I ruined a beautiful 10g example of concentrate by using ISO to sterilize the platinum cured silicone container that would hold the extract.
    I only used small amounts of ISO, heavily rinsed, and waited a day before loading the container.
    Next day, assuming all ISO would have left the container completely, I filled it with concentrate but the stinging “chemically” smell of ISO still lingered and eventually leeched into the concentrate itself over time.

    My recommendation for cleaning your silicone is as simple as warm water and a soft brush.
    A mild degreaser/dishwashing gel should be used to rid the silicone of oils and chemical that accumulates in the production factories.

    To take things to the next level of sterility, one could place their platinum cured silicone in boiling water for roughly 30 seconds (increment of time should be judged based on thickness and grade of silicone).

    I use the latter method and have had success as it seems to eliminate the whitish “filmy” residue you’ll see on a slab of shatter after its sat on the surface of normal silicone for a period of time.

    Preservation of concentrate is another story as in my experience I found the quality of concentrate will degrade over time even in controlled temp environments.
    Input for preserving that extra special batch of concentrate would be appreciated.

    Input for keeping clean/sterile containers will be appreciated.

    Thanks for your time.

    This is a good thread man, also welcome to FC!

    I tend to vary my choices here depending on the material.

    First of all, I have said it before but I’ll say it again – we need to get conclusive testing done to find out what the white residue you mention is (I have noticed it many times too!) that gets onto shatter left in a silicone container for too long. It scares the living christ out of me.

    To clean silicone containers, I will usually soak the container in clean, new iso for a few hours, then in water overnight, then I will leave it to dry out for at least a few days. This avoids the swelling of silicone with solvents (which silicone is very well known to do, as you sadly experienced!).

    However, as I predominately dab solventless these days (rosin and full melt bubble hash generally).

    I am more likely to keep the full melt in glass. This shit is so sticky that it’ll pull the top layer off of parchment even when it is a silicone/cellulose matrix with no separate outer layer to get stuck to!). I am not sticking that into a silicone container, fuck that.

    I am less and less trusting of silicone containers as time goes on, I tend to try and squish out my day’s rosin the same day to avoid long term storage in silicone containers, also replace all containers very frequently (never hang onto them longer than a month or so).

    I use mason jars for less than full melt hashes and flowers, with boveda packs

    Firstly – don't do what i did. I ruined a beautiful 10g example of concentrate by using ISO to sterilize the platinum cured silicone container that would… ]]>