For a few batches in a row, I've struggled with beers being overcarbonated. I'm using a calculator I found online that seems to match with other websites and books I've read. For example, I brewed an IPA and primed with 2.6oz of white sugar. I bottle and store at around 67 to 70F this time of year.
The bottles won't explode, but when opened, many of them foam out the top. If they don't, they are still very foamy and overcarbonated. I've thought about just cutting the priming sugar in half, but that's more of a workaround, not a solution..and it might not even fix the problem if it's a deeper issue.
As far as sanitization goes, I soak the bottles (and other equipment) for at least 5 minutes in Iodopher before using.
Considering priming tablets and/or other carbonating methods. Thanks for any input!