In this video by Adam Makes Beer, he addresses the common problem of bottle conditioning issues. He offers insights on how to restart the bottle conditioning process if carbonation is lacking but residual sugar is present. He emphasizes the importance of checking the temperature and suggests warming the bottles up, particularly for certain beer styles. Adam also discusses the potential seam issues that can affect carbonation and advises ensuring a good seal on the bottle cap. Overall, he recommends making process changes for future batches and enjoying a lightly carbonated beer rather than attempting to fix it by adding more yeast or altering the fermentation process. If you found this information helpful, don’t forget to like, subscribe, and explore other videos on Adam Makes Beer’s channel.

Beer Bottle Conditioning


Bottle conditioning is a method commonly used by homebrewers to add carbonation to their beers. It involves adding a small amount of sugar to each bottle before sealing it, allowing the yeast to consume the sugar and produce carbon dioxide, which creates the bubbles and carbonation in the beer. However, sometimes the carbonation process may not go as planned, resulting in lower carbonation levels or even no carbonation at all. In this article, we will explore the factors that can influence carbonation, temperature control during fermentation, different styles of beer and their effects on conditioning, potential solutions to common problems, and the importance of ensuring a good seal on your bottles.

Factors Influencing Carbonation

Several factors can affect the carbonation levels in bottle-conditioned beers. The most crucial factor is the yeast’s ability to consume the added sugar and produce carbon dioxide. If the yeast is not active or healthy enough, it may not fully ferment the sugar, leading to lower carbonation levels. Other factors that can affect carbonation include the amount of sugar added, the temperature during fermentation, and the presence of residual sugar in the beer.

 Beer Bottle Conditioning

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Temperature Control

Temperature control plays a vital role in the fermentation and carbonation process. The ideal temperature range for most ale yeasts is between 68°F and 72°F (20°C to 22°C). If the fermentation temperature is too low, the yeast’s activity may be slowed down, resulting in incomplete fermentation and lower carbonation levels. On the other hand, if the temperature is too high, the yeast may become too active, leading to off-flavors or overcarbonation. It’s essential to monitor and control the temperature throughout the fermentation process to achieve optimal carbonation.

Styles of Beer and Conditioning

Different styles of beer have varying requirements for carbonation levels. For example, Belgian styles, such as Saisons or Belgian Tripels, traditionally have higher carbonation levels compared to English ales or stouts. When bottle conditioning, it’s important to consider the specific requirements of the beer style and adjust the conditioning process accordingly. Styles with higher carbonation levels may benefit from warmer storage temperatures, while others may require longer conditioning periods.

 Beer Bottle Conditioning

Potential Solutions

If you find yourself with a bottle of beer that lacks carbonation, there are a few potential solutions you can try. First, ensure that the temperature of the beer is within the optimal range for fermentation. If it is too low, gradually increase the temperature to encourage the yeast to become active and continue the fermentation process. Additionally, you can gently rotate the bottles to ensure uniform temperature distribution and promote yeast activity. If the issue persists, it may be due to a seam issue or a faulty seal, which we will discuss further in the next sections.

Seam Issues

Seam issues can occur in both bottled and canned beers and can affect carbonation levels. When using crown caps, it’s important to ensure a proper crimp to create a tight seal. If the cap is not crimped tightly enough, it may allow excess carbon dioxide to escape, resulting in lower carbonation levels. To check for seam issues, spin the cap gently. If it moves easily, the seal may not be tight enough. Be cautious not to apply too much pressure, as this can cause the top of the bottle to break.

 Beer Bottle Conditioning

Ensuring a Good Seal

To ensure a good seal and prevent any potential seam issues, follow these steps when bottling your beer:

  1. Use proper crown caps: Make sure you’re using crown caps specifically designed for bottle conditioning. Avoid using twist-off bottles, as they may not seal properly.
  2. Apply consistent pressure: Use a capper tool to apply consistent pressure when crimping the caps onto the bottles. The cap should be snug and not easily twisted or removed.
  3. Store bottles properly: Store the bottles upright in a cool, dark place to minimize temperature fluctuations. Avoid exposing them to excessive heat or cold, as this can affect carbonation levels.
  4. Rotate bottles if needed: If you are storing your bottles in cases or racks, periodically rotate the bottles to ensure even temperature distribution and promote yeast activity.

Dealing with Lower Carbonation

If you find that your beer has lower carbonation levels than desired, there are a few options to consider. First, you can warm up the bottles gradually to encourage additional fermentation and carbonation. Increase the temperature by a few degrees each day until you reach the ideal range for yeast activity. Alternatively, if the beer still tastes good and you don’t mind a slightly lower carbonation level, you can simply enjoy it as is. Sometimes, accepting a lightly carbonated beer without making any changes is the easiest solution.

Avoiding Process Changes

While it may be tempting to add more yeast or sugar to the bottles to increase carbonation levels, it’s generally best to avoid making process changes after bottling. Adding more yeast can introduce other flavor compounds and potentially lead to off-flavors, while adding more sugar can result in overcarbonation and potential bottle explosions. Instead, focus on making process changes in your next batch to ensure proper carbonation from the start.


Bottle conditioning is a popular method for adding carbonation to homebrewed beers. However, sometimes the carbonation process doesn’t go as planned, resulting in lower carbonation levels. By considering factors such as temperature control, specific beer styles, seam issues, and ensuring a good seal, you can increase your chances of achieving the desired carbonation levels in your bottle-conditioned beers. Remember, it’s all part of the brewing journey, and with a little experimentation and troubleshooting, you’ll be able to produce carbonated beers that you can enjoy and share with others. Cheers!

Hi, I’m Carlie Brandywine

Hi, I'm Carlie Brandywine, the author behind Total Beverage. As a passionate lover of coffee, beer, cocktails, spirits, tea, and all things beverage-related, I've created this website to share my expertise and recommendations with fellow enthusiasts. At Total Beverage, you'll find a curated selection of products and gift ideas tailored to the needs and tastes of beverage lovers. Whether you're in search of coffee equipment, wine-related products, bar accessories, or home bar equipment, I've got you covered. Join me on this journey as we explore the world of beverages and find everything you need to prepare, serve, and savor your favorite drinks. Cheers!