Nick Walmsley, left, and Matt Wrosch, co-founders of Hertzbier, are testing their barrel-aging technology at Liberty Call Distilling Co. in Spring Valley.

Nick Walmsley, left, and Matt Wrosch, co-founders of Hertzbier, are testing their barrel-aging technology at Liberty Call Distilling Co. in Spring Valley. Photo by Stephen Whalen.

The hardest part of barrel aging? Waiting...

Take 1 minute to subscribe and you'll get this story immediately, plus:

Already a subscriber? Sign in

  • 52 weekly issues
  • Subscriber-only digital content every business day, plus full access to SDBJ.com archives
  • Book of Lists — the most comprehensive business resource in San Diego
  • San Diego 500 — influential business leaders you need to know
Yours for only $129