Thanks for this question!
Just the Goods offered a deposit return / container re-use program for glass mason jars during the first five years of operation (2009 - 2014), but unfortunately it didn't work because containers were largely returned to me in unusable condition (chipped or cracked glass, rusted lids, etc.).
With respect to plastic, despite High Density Poly Ethylene (HDPE #2 plastic) being the safest and most stable variety available for consumer packaging, it can not withstand the heat required for adequate sterilization for reuse. Folks may choose to reuse this packaging in their own homes at their own discretion, but safe manufacturing standards in Canada indicate that it is not possible to reuse HDPE plastic, even if it’s going back to the same customer, which is near impossible to track given the logistics of production.
If you live in Winnipeg, in lieu of my earlier attempt at a re-use program, a number of Just the Goods products are now available in refill format at Refill Market on Notre Dame so, if you like, you can refill your containers there! Please be sure your containers are completely cleaned and thoroughly dry before attempting to reuse them because any residual water content in your packging will cause refilled product to spoil prematurely.
If you are located outside of Winnipeg I recommend reusing packaging at home, or recycling them as part of your local/muncipal program since the carbon cost of returning an empty bottle to me very much outweighs the benefit of reusing it, creating an environmental defecit rather than a gain.
Having said that, most of Just the Goods products are now available in plastic free options, aluminum being the most recycled material on Earth due to it's high commodity value. I recommend purchasing Just the Goods products in aluminum instead of plastic whenever possible to faciliate this closed loop option😊
For further information about Just the Goods efforts to become plastic-free, please visit: https://justthegoods.net/pages/jtg-is-becoming-plastic-free