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Do you have a pH meter and have you considered passing a small batch of the yeast through an acid wash? Normally brewers use phosphoric acid to lower the pH to around 2.2 and hold it there for 2 hours at fridge temp. This kills off the vast majority of bacteria, but not yeast. It may decrease...

I've never made a beer with oil or fish so this is all just speculation: I think the main problem with coconut oil is just that oil and water don't mix. The beer might absorb some of the coconut flavour, but you'd likely end up with all the oil floating on top. Maybe you could use an emulsifier...

I don't know if there's other ways to make antimicrobial surfaces, but I think most use either copper or silver nanoparticles embedded in the surface to kill mircobes. I wouldn't use the containers as both copper and silver kill yeast by disrupting the plasma membrane.

Yeah, pipette tips usually come in big bags. For sterile purposes, labs put a bunch of them in a plastic box and autoclave them. You could could probably boil them for a minute or two to sterilize them though. You might have to cut the end of the 5mL tip to draw really thick slurry. It...

So I looked up some articles on this method. The main thing that jumps out at me about your graph is that you have Abs <0 in the middle there, which would mean your sample cuvette is transmitting more than your reference cuvette at these wavelengths. It might just be that your cuvette was dirty...

I've never done this one, but I've done IBUs which I think might be similar. Can you describe the method and your process?

+3 BBD Saison Furtif 2041

As easy as pie :p Not exactly cheap equipment though. A good hydrometer and lab glassware would cost upward of $500. But there's no consumables in the process, and it's still orders of magnitude cheaper than a HPLC machine.

I used to work in a brewery QC lab. We did it by the ASBC distillation method. Basically you take 250mL of degassed beer, dilute it with some water, and then distill off ~225mL. Alcohol boils at a lower temp then water, so all the alcohol should have boiled off into the collection flask before...