To be perfectly honest, at Breadtopia, we’re not exactly hands-on experts at long term grain storage. We do store large volumes of many different grains, but because we are selling them in bulk, we have a lot of turnover and we basically never have any given shipment of grain sitting in our warehouse for more than a few months.
Because we get asked about it all the time, we’ve done a bit of research and compiled this page with some basic information along with links to more detailed explorations we’ve found on the Internet.
When it comes to grain storage over time your main enemies are:
- Moisture (mold)
- Oxygen (oxidation / rancidity)
There are other considerations as well, but you can get a lot of bang for your buck if you can minimize the effects of the three issues above. Most of what we’ve read on the issue suggests that you can get years (even decades!) of viable grain storage (with most grains) if you start with well-dried grain and then vacuum-seal it into mylar bags with oxygen absorber packets and then store those bags in a pest-proof container like the 5-Gallon Life Latch Food Grade Buckets that we sell. Please note that buckets by themselves are not a substitute for mylar bags when mylar bags with oxygen absorbers are called for.
Here are some links to a few pages we found that go into a lot more detail: