To clear 5 gallons of beer using gelatin finings, the recommended dosage is up to 1 teaspoon. However, the amount of gelatin you actually need may vary depending on the specific beer and the desired level of clarity.
When using gelatin finings, it's important to remember that less is often more. Adding too much gelatin can potentially strip the beer of desirable flavors and aromas. It's best to start with a smaller amount and increase if necessary.
In my personal experience as a brewer, I have found that using around 1/2 to 3/4 teaspoon of gelatin per 5 gallons of beer usually yields good results. However, this can differ depending on the type of beer and how much particulate matter needs to be cleared.
If you're unsure about the optimal dosage for your specific beer, you can also consider doing a small-scale test before treating the entire batch. Simply divide a small portion of your beer and experiment with different amounts of gelatin to see which dosage provides the desired clarity without negatively impacting the flavor.
It's worth noting that gelatin finings work best when combined with a cold crash. After adding the gelatin, it's recommended to lower the temperature of your beer to around 35-40°F (1-4°C) and let it sit for a few days. This cold crash helps the gelatin to further bind to the particles, making them settle more efficiently.
To summarize, the recommended dosage for gelatin finings to clear 5 gallons of beer is up to 1 teaspoon, but it's best to start with a smaller amount and adjust as needed. Conducting a small-scale test and combining gelatin with a cold crash can help achieve optimal clarity without sacrificing flavor.