Having just returned from a quick trip up to the ECHO Asia Seed Bank in Mae Ai, I was impressed to see the latest technologies being employed by our low-input, grow-out, packaging, and distribution hub (aka- the Seed Bank). The first of the gadgetry was a new commercial grade vacuum sealer, used to vacuum-seal quantities of seeds that we then send out to our network partners. We have found that vacuum sealing dried seeds helps to reduce and stabilize ambient moisture, which is detrimental to stored seed viability. Vacuum-sealed seeds can maintain their longevity without the need for costly and space prohibitive refrigeration (although vacuum sealing with refrigeration can provide the best storage conditions). Also included at the seed bank was a backup sealer, of the type and grade you can get at many bakery supply stores. We will use this when the commercial vacuum sealer needs repairs.
Figure 1: New, commercial-grad vacuum sealer with examples of vacuum sealed seed packages
Figure 2: Vacuum sealed seed packages in new vacuum sealer