I highly recommend you read through this thread. Then read through the lost biologist thread. Then read through the EHO Color Remediation thread. Seems like what was once gospel with ethanol needing to be super chilled for decent color is in question with newer color remediation teks cleaning up room temp extracts. But starting super cold is a good place to start at this point. Personally, I have a feeling the correct answer is somewhere in the middle to optimize efficiency and color while keeping energy/expendable cost down. But I’m still very much in the experimental stages myself, so don’t listen to me quite yet.
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