We are trying to develop a method to dry spent grains with a small DIY solar dryer. When we pick up the spent grain it is get too much volume for our dryer and then how to store it. Our drying process is very small and slow. We do not have the ability to freeze the spent grain.
We have developed and plan to use a 5-gal bucket system in which the lid pushes all the air out of the bucket. The lid has an airlock. We plan to put the spent grain in these 5-gal buckets with water, push the air out, put in the airlock and store them until the dryers are free to process the spent grain.
Our questions are:
1. Will this work?
2. Should we mix yeast or sugar into the buckets to keep them from spoiling?
We are not brewers, so this is all new to us. Thanks for any input