• 0 Posts
  • 22 Comments
Joined 1 month ago
cake
Cake day: May 23rd, 2024

help-circle












  • i think what you are describing is the “best before date”. the expiration date instead works as OP describes it: after the expiration the product should be tossed.

    i usually see expiration dates on fish and meat. afaik honey never comes with an expiration date; the best before date is probably only relevant for the taste of the honey, not for its safety.


  • sodium iodide does not prevent clumping. typical anti-caking agents in salt are: fumed silica, potassium ferrocyanide, alumosilcate salts [Na+ | Ca2+ | K+] and sometimes, more frequently in organic products: simple carbonate salts (also [Na+ | Ca2+ | K+]).

    I know there are people who are afraid of anything with with the word “cyanide” anywhere in the description but ferrocyanides are really quite harmless. they are so harmless in fact that they are a common component of chemistry kits for little kids to make prussian blue.


  • user134450@sh.itjust.workstoTest@lemm.eeIt’s quicker
    link
    fedilink
    English
    arrow-up
    5
    ·
    21 days ago

    the water and the container would need to be very clean and the container would need to be very smooth and free of surface defects for that to happen. even microscopic cracks or scratches in glazing or glass can act as a highly effective starting point for boiling.
    think scraping over the bottom of a glass with a spoon: that might be enough already to create those kinds of scratches.




  • LiPo batteries will not last 10 years, even if unused.

    They will self-discharge in a matter of a few years (the exact time this takes depends a lot on the quality of the cell btw.). After you reach a critical level of discharge the electrodes inside the battery will start to become irreversibly damaged (typically below 2.7V but this can vary a little depending on exact type).
    after this damage becomes severe enough the cell can be considered dangerous because trying to recharge it at this point could result in an explosion. the same is true if a LiPo cell is damaged by some other method, like crushing or extreme temperatures.
    if you do not recharge a cell that was damaged from a ultra deep discharge you are relatively safe though. the most probable danger from such a cell would then be leaking electrolyte because the hermetic seal could be damaged from long-term corrosion / environmental damage.