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  1. dr_bollinger

    Interbreeding in Yeast

    I would love to learn more about historical English brewing practices. Can you recommend any books or resources?
  2. dr_bollinger

    Interbreeding in Yeast

    Interesting -- thanks guys! This is really informative. I didn't realize that historical yeast cultures were so heterogeneous. Does this mean that Guiness was collecting krausen or dregs from multiple breweries, then pitching a mix of those yeast cultures, some from each brewery? I would...
  3. dr_bollinger

    Interbreeding in Yeast

    I was recently considering why every "house strain" of yeast seems to consist of a single strain, rather than multiple co-existing strains. All of the well-known, old, European beers seem to use only a single yeast strain (e.g., Wyeast 1084 Irish Ale, which is a single strain of Saccharomyces...
  4. dr_bollinger

    Post-Fermentation Water Adjustments (in Keg)

    This is a good point, and one that I considered before experimenting with post-fermentation mineral additions. I recall concluding that calcium and mash pH are important to the mash, boil and fermentation, but that Cl and SO4 concentrations are primarily implicated in the taste of the beer, and...
  5. dr_bollinger

    Post-Fermentation Water Adjustments (in Keg)

    To each their own? I do both of those things already, pal: I carefully design my water profiles along with my recipes, and add all necessary minerals on my brew day. I track my post-fermentation mineral additions and incorporate those extra minerals into my recipe for next time. But I have...
  6. dr_bollinger

    Post-Fermentation Water Adjustments (in Keg)

    I have experimented in the glass to figure out how much salts to add to the keg. I’m not sure why you would do it only to seek guidance for subsequent batches (well, I guess if you had bottled the batch then it would make sense). I’m surprised that more people aren’t treating whole batches...
  7. dr_bollinger

    Post-Fermentation Water Adjustments (in Keg)

    I do adjust my brewing water (mash and sparge water) using lactic acid, CaCl and/or CaSO4. I use Brewers Friend to build my recipes and determine an appropriate water profile. I usually add 4 to 6 grams of CaCl or CaSO4 to my water, so there's always plenty of calcium. But I've found that...
  8. dr_bollinger

    Post-Fermentation Water Adjustments (in Keg)

    I'm wondering how many people are consistently making mineral adjustments to a beer after it's fermented? In two experiments, I've had great success. I had a saison that was finishing a little on the sweet side, so I added a few grams of CaSO4 (in solution) into the keg. Voila. Dry, crisp...
  9. dr_bollinger

    Pasteurizing Sour Beer Before Mixing with Clean Beer?

    Thanks for the replies. I'm leaning towards tossing 1 campden tablet into the brett beer 1 day before blending. That should significantly mitigate the chance of future infections while avoiding the risk of oxidization. Also, I don't see any downside to using campden.
  10. dr_bollinger

    Pasteurizing Sour Beer Before Mixing with Clean Beer?

    I was planning on brewing a clean, 100% sacc saison tomorrow. I wasn't planning on adding brett or bacteria because my "funky" keg is currently occupied, while I have a "clean" keg that is almost available. I just had an idea, though. I have 1 gallon of a 100% brett beer that has been aging for...
  11. dr_bollinger

    100% Wheat Saison?

    Thanks for the great ideas, guys! I'm gonna go for it.
  12. dr_bollinger

    100% Wheat Saison?

    I've got lots of wheat malt and an old pack of WL585 Saison III sitting around that need to get used. I'm considering making a saison with 7 lbs of wheat, 1 lb of rice hulls, and 2 lbs of sugar. Question #1: Is that a terrible grain bill? Question #2: Is 1 lb of rice hulls enough?
  13. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    I'm not sure why this is so controversial. 3711 is diastaticus. Diastaticus contamination has caused recalls and a lawsuit. There seem to be reasonable grounds to treat diastaticus as a "wild" yeast like brettanomyces rather than a "clean" yeast. No one's saying not to use 3711 -- I'm just...
  14. dr_bollinger

    Campden Tablets.....

    I accidentally forgot to use campden in a batch. It tastes notably "medicinal" -- there's an unpleasant plasticy, iodine, hospital flavour and aroma. It's no good. Never again. I brew with Toronto tap water, which has chloramines.
  15. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    You test for diastaticus? Hats off to you sir. Sounds like you've got a more sophisticated lab than White Labs' What sanitation product(s) do you recommend instead of "the big name"?
  16. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    Fair enough. I'm a little less optimistic. I suspect that, if a small number of cells of Diastaticus are introduced early in the fermentation, the infection might not show until weeks after the primary strain has finished fermenting, in which case a home brewer would have the illusion of a...
  17. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    https://www.reddit.com/r/TheBrewery/comments/5cx15c/qc_folks_any_experience_testing_for_s_diastaticus/ If you allowed the Diastaticus to ferment out, then you wouldn't have had a problem. The problem would be if the Diastaticus had been inadvertently introduced in small quantities. Have you...
  18. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    The fact that Diastaticus contamination causes packaged beer to explode. I'm not sure why the homebrew level would be different from the commercial level in this context. I also read elsewhere that fewer Diastaticus cells relative to Brett cells are necessary to cause an infection, and that a...
  19. dr_bollinger

    Is 3711/Belle Saison a Contaminant?

    I recently found out that pro brewers have struggled with contamination by Saccharomyces cerevisiae variant Diastaticus, which is apparently sold commercially as 3711 and Belle Saison. See the following article...
  20. dr_bollinger

    Tiny Mold Rafts -- Dump?

    I'm a noob when it comes to pitching dregs, and I'm worried that my experiment may have gone awry. On the morning of my brew day, I made a vitality starter using the dregs of two bottles of Jolly Pumpkin Oro de Calabaza (dated 3 months ago), and then pitched the starter with no other sacc...
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