Increasing chest freezer efficiency: your ways?
We raise much of our food and freeze rather than can fruits, veggies and meats. When the frozen supply decreases, we fill the spaces with plastic containers of distilled water, to increased efficiency and to have water if there is an emergency.
For several years, I have been layering double bubble wrap (that had been wrapped around our cabinets), across the tops of the frozen goods in our chest freezers. When I open these, I do not get a 'blanket' of cold air. So, I believe I am minimizing cold loss.
I keep a chart of my freezers' contents and only lift up the end that has the item/s I need. I find that I can go a year between defrosting.
I wish I had an in-line device to measure the KW used with and without the bubble-wrap.
Is there a similar way to lessen the 'cold loss' in an upright freezer?
Any other ideas to increase freezer efficiency?