Through our testing, we found the following minimum and maximum batch sizes when using the Spike Solo brewing systems:

Maximum - These grain amounts and batch sizes max out the volume of the kettle during the mash. The volume of the grain and all the water necessary for the batch will fill up the kettle. Larger batches than shown below will overflow the kettle

Minimum - These are the smallest batch sizes possible with the basket. At these minimums, there is a good ratio of water to grain inside the basket for the mash. Smaller batches than shown may be too thick and result in an inefficient mash.