EarthenSky
Plant
I've taken a course on brewing, so I have a rough idea of the brewing process. Even for non-alcoholic beers. My understanding is that there are 3 main approaches to making non-alcoholic beer. However, in my research and tests, I got stuck on each approach.
Additionally, I'd love to hear if anyone has tried any of these approaches and got results they liked or that seemed promising!
- Boiling
- Make a regular beer up to the end of fermentation, boil the alcohol away, then force carbonate it for bottling. I've tried this before with a light IPA, although I found the required boil time (1.5 hours) to reduce ABV from 5% to 0.5% caused the result be black and taste burnt.
- Issue: A long post-fermentation boil seems to burn either the hops or the Malt.
- Maltose (or matriose) negative yeast
- Make your wort just like usual, but innoculate with a special strain of non-alcoholic yeast that can't consume longer chain sugars (most common). See this for more details.
- Issue: I couldn't find any maltose or maltriose negative yeasts for sale at reasonable prices / quantities. I would be willing to spend up to $50 on yeast for experiments, but the cheapest I've been able to find is LONA for about $300 CAD, which is outside my range.
- Vaccum distillation
- Make a regular beer to just before the carbonation stage. Use fancy vaccum distillation equipment to remove ethanol/methanol from the beer, bringing the ABV arbitrarily low without messing with the aroma too much. Optionally dry hop a little after, then force carbonation.
- Issue: Vaccum distillation seems to border on legality (even if I just chuck out the ethanol/methanol), and the equipment seems to be expensive as well. As a non-engineer, it's not clear whether I could reasonably build something to perform vaccum distillation.
Additionally, I'd love to hear if anyone has tried any of these approaches and got results they liked or that seemed promising!